diff --git a/book.toml b/book.toml
index 63ad254..5efa159 100644
--- a/book.toml
+++ b/book.toml
@@ -11,3 +11,5 @@ edit-url-template = "https://github.com/noti/puzzle-design-kb/edit/main/{path}"
 [output.html.playground]
 editable = true
 line-numbers = true
+
+[preprocessor.mermaid]
diff --git a/src/inspiration/kings-quest-vi-puzzle-inventory.md b/src/inspiration/kings-quest-vi-puzzle-inventory.md
new file mode 100644
index 0000000..a12cc54
--- /dev/null
+++ b/src/inspiration/kings-quest-vi-puzzle-inventory.md
@@ -0,0 +1,389 @@
+# King's Quest VI: Comprehensive Puzzle Inventory
+
+This document catalogs all puzzles found across 4 walkthrough sources for KQVI, cross-referenced by geographical area and compared against the existing dependency chart.
+
+## Sources Analyzed
+
+1. **Sierra Planet** - Full walkthrough with detailed puzzle solutions
+2. **GameFAQs (bananagirl)** - Comprehensive walkthrough with point list and item table
+3. **GameFAQs (Tricrokra)** - Step-by-step walkthrough with inventory references
+4. **GameFAQs (ASchultz)** - Point-by-point action list with itemized details
+
+---
+
+## Area 1: Isle of the Crown
+
+### 1.1 Beach
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Royal Ring Discovery** | Need identification to prove prince身份 | None | Royal Insignia Ring | None |
+| **Hidden Box** | Get valuable coin from debris | None | Copper Coin | Move plank |
+| **Magic Map Activation** | Access to other islands | None (must be at beach/dock) | Magic Map | Trade Royal Ring to Pawn Shop |
+
+### 1.2 Castle Entry
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Guard Dogs Proof** | Need to enter castle | Royal Insignia Ring | Audience with Vizier | Get Ring from Beach |
+| **Vizier Meeting** | Learn about Cassima's situation | Proof of identity | Kicked out of castle | Show Ring to Guards |
+
+### 1.3 Village
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Pawn Shop Trading** | Get useful items | Copper Coin | Nightingale (first trade) | None |
+| **Magic Map Trade** | Access to all islands | Royal Insignia Ring | Magic Map | Talk to ferryman first |
+| **Invisible Ink Discovery** | Item for gnome puzzle | None | Invisible Ink Bottle | Pawn shop owner trashes items after map trade |
+| **Jollo Trust** | Unlock story info, best ending path | Royal Insignia Ring | Jollo's trust, story hints | Return to bookstore after ferry |
+
+### 1.4 Crossroads / Forest
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Sing-Sing Befriending** | Messenger to Cassima | Mechanical Nightingale | Bird trusts you | None |
+| **Ring Delivery to Cassima** | Start communication with princess | Royal Insignia Ring | Hair Ribbon + Cassima's Hair | Befriend Sing-Sing |
+| **Love Poem Delivery** | Build relationship with Cassima | Love Poem | Cassima's Letter | Give Ring first |
+| **White Rose Delivery** | Final message to Cassima | White Rose (second) | No direct return | Beauty/Beast quest complete |
+
+### 1.5 Dock / Ferry
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Ferryman Access** | Learn about islands, get ferry info | Talk to Ali first | Rabbit's Foot | None |
+| **Rabbit Foot** | Item for gnome puzzle | None | Rabbit's Foot | Get ferryman trust |
+
+### 1.6 Mansion
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Beauty Trust** | Break Beast's curse | White Rose | Beauty's trust | None |
+| **Ring Exchange** | Unite Beauty with Beast | Beast's Ring | Beauty's Dress, Mirror | Give Rose first |
+
+---
+
+## Area 2: Isle of Wonder
+
+### 2.1 Beach
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Five Gnomes** | Access to island interior | Flower of Stench, Nightingale, Mint, Rabbit Foot, Invisible Ink | Can explore island | Get items from IoC |
+| **Oyster Pearl** | Trade item, later quest | Boring Book | Pearl | Read book to oyster |
+| **Sentence Fragment** | Complete dangling participle | None (floats in) | Sentence ("Where are you going?") | Wait for it to wash ashore |
+
+### 2.2 Point / Book Garden
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Bookworm Trade** | Get rare book for spellbook | Dangling Participle | Rare Book | Get participle from IoB |
+| **Spider Web Paper** | Learn riddle answer for Gate | Loose Thread (web) | Word "LOVE" | Pull thread first |
+| **Love Poem** | Send to Cassima | Poetry bookshelf | Love Poem (page falls) | Search bookshelf |
+
+### 2.3 Swamp
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Milk Bottle** | Needed for baby's tears | None | Milk | None |
+| **Swamp Ooze Collection** | Ingredient for paint spell | Rotten Tomato, Tea Cup | Swamp Ooze | Give tomato to Bump-on-log |
+
+### 2.4 Garden
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Hole-in-the-Wall Capture** | Item needed for catacombs | Flute | Hole-in-the-Wall | Play flute for wallflowers |
+| **Iceberg Lettuce** | Cool boiling pool | None | Iceberg Lettuce | None |
+| **Rotten Tomato** | Get swamp ooze | None | Rotten Tomato | None |
+| **Baby's Tears Collection** | Ingredient for rain spell | Milk, Hunter's Lamp | Baby's Tears | Give milk to baby plant |
+| **Tea Cup** | Container for spells | None | Tea Cup | None |
+| **"Drink Me" Potion** | Fake death for genie | None | Potion | None |
+
+### 2.5 Chessboard Land
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Red Scarf** | Lure minotaur to death | None | Red Scarf | Queens leave after conversation |
+| **Coal/Egg Trade** | Get sulfur egg for spell | Lump of Coal | Sulfur Egg | Get coal from IoM |
+
+---
+
+## Area 3: Isle of the Beast
+
+### 3.1 Beach
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Dangling Participle** | Trade with bookworm | Sentence Fragment | Dangling Participle | Speak to bookworm first, show sentence |
+
+### 3.2 Boiling Pool
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Cool the Pool** | Cross to north area | Iceberg Lettuce | Can cross | Get lettuce from IoW |
+| **Hunter's Lamp** | Container for rain spell | None | Lamp | None |
+
+### 3.3 Garden / Archer Gate
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Archer Statue Bypass** | Access to hedge maze | Shield | Safe passage | Get shield from catacombs |
+| **Brick** | Stop trap in catacombs | None | Brick | None |
+| **Rose Hedge Cut** | Access to Beast | Scythe | Path opens | Get scythe from IoM |
+
+### 3.4 Hedge Maze
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Beast Meeting** | Learn about curse, get ring | None | Beast's Ring, Mirror | Have white rose |
+| **Beauty's Dress** | Disguise, fire protection | Give Rose + Ring to Beauty | Beauty's Dress, Mirror | None |
+| **White Rose (second)** | Final gift to Cassima | None | White Rose | None |
+
+---
+
+## Area 4: Minotaur's Maze / Catacombs
+
+### 4.1 Level 1
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Skull Collection** | Spell ingredient | None | Skull | Navigate maze |
+| **Tile Puzzle** | Navigate spikes safely | Manual (copy protection) | Path opens | Manual required |
+| **Shield** | Protection from archer | None | Shield | Navigate maze |
+| **Dead Man's Coins** | Pay Charon | None | Coins | Navigate maze |
+| **Falling Ceiling Trap** | Survive crushing | Brick | Continue to L2 | None |
+
+### 4.2 Level 2 (Dark)
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Light the Way** | See in darkness | Tinderbox | Can navigate | Have tinderbox |
+| **Spy Room** | Learn minotaur secret | Hole-in-the-Wall | See tapestry location | Use at correct wall |
+| **Tapestry Discovery** | Find minotaur entrance | None | Access to lair | Navigate maze |
+
+### 4.3 Minotaur's Lair
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Minotaur Defeat** | Get dagger, proceed | Red Scarf | Dagger, Sacred Water, Oracle Vial | Lure with scarf |
+
+---
+
+## Area 5: Isle of Sacred Mountain
+
+### 5.1 Beach
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Flower of Stench** | Gnome puzzle | None | Flower | None |
+| **Black Feather** | Paint spell ingredient | None | Feather | None |
+
+### 5.2 Cliffs of Logic
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Five Logic Puzzles** | Climb to summit | Manual (copy protection) | Path to summit | Manual required |
+
+### 5.3 Clifftop
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Poison Berry Avoidance** | Survive | None (wait) | None | Reject fake lady |
+| **Cave Entry** | Access to mint | Tinderbox | Peppermint Leaves | Light way |
+
+### 5.4 Dark Cave
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Mint Leaves** | Defeat genie | Tinderbox | Peppermint Leaves | Light cave |
+
+### 5.5 Winged Ones / Oracle
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Prophecy Fulfillment** | Get sacred water | Red Scarf, Tinderbox, Hole-in-Wall, Brick | Sacred Water, Oracle Vial | Complete catacombs |
+| **Night Mare Charm** | Access Realm of Dead | Spoiled Egg, Hair, Ember, Skull | Ride Nightmare | Have all ingredients |
+
+---
+
+## Area 6: Isle of the Mists
+
+### 6.1 Beach
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Druid Survival** | Not burned | Rain Spell + Beauty's Dress | Survive | Prepare rain spell |
+
+### 6.2 Village
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Scythe** | Cut rose hedge | None | Scythe | None |
+| **Coal** | Trade for sulfur egg | None | Coal | None |
+
+### 6.3 Ceremonial Ground
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Ember Collection** | Spell ingredient | Skull | Ember | Have skull |
+| **Skull Preparation** | Cast charm spell | Spoiled Egg, Hair, Ember | Skull ready for spell | Have all ingredients |
+
+---
+
+## Area 7: Realm of the Dead
+
+### 7.1 Landing Point
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Zombie Avoidance** | Survive | Rain Spell (if triggered) | None | Navigate carefully |
+| **Cassima's Parents** | Get underworld ticket | None | Ticket | Talk to spirits |
+
+### 7.2 Pathway
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Ghost Mother** | Help find son | None | Handkerchief | Talk to ghost |
+
+### 7.3 Gate
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Xylophone** | Get skeleton key | None | Skeleton Key | Play bones |
+| **Ticket Gate** | Enter underworld | Ticket | Access to Styx | Give to skeleton |
+
+### 7.4 River Styx
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Gauntlet** | Challenge Death | None | Gauntlet | Search knight |
+| **Styx Water** | Paint spell final ingredient | Tea Cup | Styx Water | Have cup |
+| **Charon's Ferry** | Cross river | Dead Man's Coins | Access to Gate | Pay fare |
+
+### 7.5 Gate (Talking)
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **LOVE Riddle** | Enter Death's domain | Answer "LOVE" | Access to throne | Remember from spider web |
+
+### 7.6 Throne Room
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Death's Challenge** | Make Death cry | Mirror | Parents freed | Show mirror |
+
+---
+
+## Area 8: Castle Interior (Infiltration)
+
+### 8.1 Side Wall (Long Path)
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Paint Door** | Create castle entrance | Black Feather, Swamp Ooze, Styx Water, Paintbrush | Door appears | Have all ingredients + spellbook |
+| **Magic Paint Spell** | Animate door | Spellbook | Real door | Paint door first |
+
+### 8.2 Castle Disguise (Short Path)
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Beauty's Dress** | Disguise as servant | Beauty's Dress | Enter castle | Get from Beauty |
+
+### 8.3 Basement / Cells
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Ghost Boy** | Learn secret passage | Handkerchief | Hint about armor | None |
+| **Guard Avoidance** | Not captured | Nightingale (distraction) | Continue | Navigate carefully |
+| **Jollo's Room** | Best ending requirement | Befriend Jollo earlier | Access to give lamp | Jollo trust |
+
+### 8.4 Secret Passage
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Eavesdrop** | Learn password part | None | Password "ALI" | Find passage |
+| **Cassima Meeting** | Give dagger, see Cassima | Dagger | Cassima has dagger | Navigate passage |
+| **Vizier Spy** | Learn password part | None | Password "ZEBU" | Find passage |
+| **Closet Exit** | Access vizier's room | None | Entry to bedroom | Find door |
+
+### 8.5 Vizier's Bedroom
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Chest Unlock** | Get treason letter | Skeleton Key | Vizier's Letter | Get key from Realm |
+| **Treasure Room Password** | Two-part code | "ALI" + "ZEBU" | Treasury opens | Learn from spy passages |
+
+### 8.6 Treasury
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Stolen Treasures** | Learn genie stole them | None | Point bonus | None |
+
+---
+
+## Area 9: Final Confrontation
+
+### 9.1 Throne Room
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Mirror Reveal** | Show Cassima's true identity | Mirror | Truth revealed | None |
+| **Saladin Proof** | Let you enter ceremony | Vizier's Letter | Access to wedding | Get letter from chest |
+
+### 9.2 Tower
+
+| Puzzle | Problem Solved | Items Required | Items Obtained | Dependencies |
+|--------|---------------|----------------|----------------|--------------|
+| **Genie Defeat (Best)** | Control genie | Fake Lamp (from Jollo) | Genie controlled | Best ending path |
+| **Genie Defeat (Alt)** | Incapacitate genie | Peppermint Leaves | Genie drunk | None |
+| **Vizier Fight** | Defeat villain | Sword, Cassima's help | Victory | Give dagger to Cassima |
+
+---
+
+## Puzzles NOT in Current Dependency Chart
+
+Based on cross-referencing all 4 walkthroughs, the following puzzles/activities appear in walkthroughs but are **missing from the dependency chart**:
+
+| Missing Puzzle | Area | Notes |
+|---------------|------|-------|
+| **Love Poem acquisition** | Isle of Crown - Bookstore | Optional point-scoring action |
+| **Spider Web Paper / LOVE word** | Isle of Wonder - Point | Critical for Realm of the Dead Gate riddle, but indirect dependency |
+| **"Drink Me" Potion** | Isle of Wonder - Garden | Used for fake suicide genie trick (Long Path) |
+| **Coal from Isle of Mists** | Isle of Mists - Village | Needed for Chessboard egg trade |
+| **Beauty's Hair vs Cassima's Hair** | Either IoC or IoB | Both serve same spell purpose, but chart only shows one path |
+| **Ember Collection** | Isle of Mists - Ceremonial | Spell ingredient, dependency implied but not explicit |
+| **Xylophone Bone Key** | Realm of the Dead - Gate | Explicit puzzle for key |
+| **Charon Ferry Payment** | Realm of the Dead - Styx | Explicit payment puzzle |
+| **Password "ALI ZEBU" Discovery** | Castle - Secret Passage | Two-step discovery process |
+| **Treasury Treasures** | Castle - Treasury | Optional point collection |
+| **Jollo's Lamp Switch** | Castle - Jollo's Room | Best ending requirement |
+| **Handkerchief from Ghost Mother** | Realm of the Dead - Pathway | Optional but gives hint |
+| **Nail from Pillar** | Castle - Upstairs Hallway | Used for chest in bedroom |
+
+---
+
+## Puzzle Classification Summary
+
+| Category | Count | Examples |
+|----------|-------|----------|
+| **Item Collection** | 40+ | Ring, coin, map, pearl, etc. |
+| **Trade/Exchange** | 8+ | Pawn shop trades, bookworm, chess queens |
+| **Communication/Messenger** | 4 | Sing-Sing deliveries to Cassima |
+| **Copy Protection** | 5 | Logic Cliffs puzzles (manual required) |
+| **Navigation Hazards** | 10+ | Gnomes, archer, boiling pool, zombies |
+| **Spells (3 total)** | 3 | Make Rain, Magic Paint, Charm Creatures |
+| **Combat/Trap** | 6+ | Minotaur, falling ceiling, tile puzzle |
+| **Social/Dialogue** | 5+ | Jollo trust, Beauty trust, Beast curse |
+| **Riddle** | 1 | Gate's LOVE riddle |
+| **Disguise** | 2 | Beauty's dress, invisible ink |
+
+---
+
+## Key Design Patterns Observed
+
+1. **Multi-Stage Collection**: Items often require multiple steps (e.g., pearl needs book → oyster yawn → grab)
+2. **Parallel Solutions**: Several puzzles can be solved in any order within an area
+3. **Copy Protection**: Logic Cliffs require manual reference, isolating this puzzle type
+4. **Inventory Cycling**: Pawn shop allows trading one item for another, enabling flexibility
+5. **Messenger Pattern**: Sing-Sing bridges isolated areas without direct access
+6. **Spell Components**: Three spells each require 3 ingredients from different areas
+7. **Best Ending Locks**: Jollo trust and lamp switch required for optimal outcome
diff --git a/todos/TODOS.md b/todos/TODOS.md
index 0ddd6eb..f93193c 100644
--- a/todos/TODOS.md
+++ b/todos/TODOS.md
@@ -1,31 +1,65 @@
-# TODO List for KQVI Puzzle Dependencies QA Fixes
+# TODO List for KQVI Puzzle Dependencies Rework
 
-## Issues to Fix in `src/inspiration/kings-quest-vi-heir-today-gone-tomorrow.md`
+## 8 Critical Feedback Points to Address
 
-### 1. Fix S17 Undefined Node (Critical)
-- [x] S17 removed from classDef (was causing CSS error)
+### 1. mdbook Mermaid Configuration
+- [ ] Add mermaid support to book.toml
+- [ ] Verify diagram renders with `mdbook build`
 
-### 2. Fix S20 Dead End
-- [x] S19 and S20 removed entirely (catacomb content outside scope)
+### 2. Actions vs Outcomes as Separate Nodes
+- [ ] "Talk to ferryman" and "get rabbit's foot" must be SEPARATE nodes
+- [ ] Every action and outcome must be distinct nodes
 
-### 3. Fix S12 Orphan (Pearl)
-- [x] Added dashed note edge indicating optional side quest
+### 3. Individual Item Acquisition Nodes
+- [ ] "Receive coin" and "receive ring" must be separate nodes
+- [ ] Every individual item/event has its own outcome node
 
-### 4. Fix S19/S20 Sequential Chain
-- [x] Removed S19 and S20 nodes, kept S21 as parallel from P6
+### 4. Organize by Lands/Areas
+- [ ] Group nodes by geographical area
+- [ ] Isle of Sacred Mountain, Isle of Wonder, etc.
+- [ ] Show proper cross-area dependency hierarchy
 
-### 5. Verify Phase 6/7 Flow (Shield Dependency)
-- [x] Verified - chart structure is correct, Shield from Minotaur Maze flows back via C2
+### 5. Problem-Solution Flow (FIX BACKWARDS STRUCTURE)
+- [ ] Current: Problem is prevented first (WRONG)
+- [ ] Should be: Solution steps lead TO problem resolution
+- [ ] Structure: START --> Prereqs --> Recognize Problem --> Solution Steps --> Problem Resolved
 
-### 6. mdbook Integration
-- [x] SUMMARY.md already links correctly
-- [x] Run `mdbook build` - passed
-- [x] Verify page exists in book output
+### 6. Complete Puzzle Inventory from Walkthroughs
+- [ ] Read all 4 KQVI walkthroughs
+- [ ] Create checklist of ALL puzzles in the game
+- [ ] Verify each puzzle appears in the chart
+- [ ] Document any missing puzzles
+
+### 7. Mechanic Note on 4 Items (Locked Choice)
+- [ ] Document: paint brush, nightingale, tinderbox, flute are LOCKED CHOICE
+- [ ] Each unlocked by trading one for another
+- [ ] For dependency graph: treat each as UNLOCKED
+- [ ] Focus on locks and keys, not mini-game trading
+
+### 8. Modern, Legible Styling
+- [ ] Fix contrast and colors
+- [ ] WCAG accessibility minimums
+- [ ] Clean color palette for node types
+- [ ] Modern aesthetics
 
 ---
 
-## Commit Points
+## Subtasks
 
-- Complete: Fix orphaned/undefined nodes (S17, S20, S12)
-- Complete: Fix sequential to parallel (S19/S20 chain)
-- Complete: Verify mdbook integration
+### Phase 1: Configuration & Research
+- [ ] Task 1.1: Add mermaid preprocessor to book.toml
+- [ ] Task 1.2: Verify mdbook build works with mermaid
+- [ ] Task 2.1: Read all 4 KQVI walkthroughs
+- [ ] Task 2.2: Create complete puzzle inventory checklist
+
+### Phase 2: Chart Rework
+- [ ] Task 3.1: Restructure nodes - separate actions from outcomes
+- [ ] Task 3.2: Create individual item acquisition nodes
+- [ ] Task 3.3: Organize by geographical areas
+- [ ] Task 3.4: Fix problem-solution flow direction
+- [ ] Task 3.5: Apply modern styling with proper contrast
+
+### Phase 3: Verification
+- [ ] Task 4.1: Cross-reference puzzle inventory against chart
+- [ ] Task 4.2: Add locked choice mechanic note
+- [ ] Task 4.3: Final mdbook build verification