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The Old Archives

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Descend into the Archives and search for a tome that tells of the mysterious Duality.

The Catacombs adpack icon.jpg
DDO Point icon.png Requires access to adventure pack: The Catacombs
The Old Archives
Heroic level: 3
Epic level: None
Duration: Medium
Heroic XP:  ♣456Solo/Casual ♦820Normal ♥880Hard ♠940Elite
Epic XP: N/A
Takes place in: Library Archives
Bestowed by: Archbishop Dryden
NPC contact: Archbishop Dryden
Quest acquired in: Catacombs
Patron: The Silver Flame
Base favor: 3
Free to Play: No
Extreme Challenge: No
M old archives.png
Second Map
Loading screen


Enter the library archives and search for a book about "The Duality."

  • This is Chapter 1 of Part 3 of the Catacombs story arc.

Spoiler Warning: Information below this point can be considered spoiler material!


  • Seek aid from Head Librarian Guillaume
  • Acquire the fragments of the Book of the Duality from their secret chambers (3 total)
  • (Optional) Clear out the infestation in the library (30 total) — Bonus (10%): Heroic( ♣46 ♦82 ♥88 ♠94 )

What to Expect

  • Traps (fixed)
  • Spawning/respawning monsters

Known Traps

Search & Spot DCs for Traps and Secret Doors
Disable Device DCs

  • Skill DCs and pictures of all traps and control box locations, and secret doors can be found in the above links by hovering over the description text.
  • Trap protecting the first fragment of the book. This trap is bugged and never goes off but still has a Control box to the right just before the steps.
  • Poison-bomb trap protecting the chest behind the secret door. No way to spot or disable it; one-shot with a delayed activation.
  • Blade trap protecting the third fragment of the book. Control box is to the right by the secret door.

Tips and Misc

  • The acid trap protecting the chest fires about a second after opening it, giving one plenty of time to open it and then jump back to safety.
  • The fragments are in rooms behind secret doors. The spot and search DCs are both -5, so the mission can be completed even if you haven't leveled those skills.
  • Fragment 2 is behind a secret door in the southwest corner on the upper floor.
  • Fragment 3 is behind a secret door in the northwest corner on the upper floor. It is protected by a blade trap.

Bonus XP

  • Insidious Cunning bonus: 0 or fewer monsters killed +10% Bonus.( ♣46 ♦82 ♥88 ♠94 )
  • Devious bonus: 5 or fewer monsters killed +7% Bonus.( ♣32 ♦57 ♥62 ♠66 )
  • Discreet bonus: 11 or fewer monsters killed +5% Bonus.( ♣23 ♦41 ♥44 ♠47 )
  • Aggression bonus: 28 or more monsters killed +10% Bonus.( ♣46 ♦82 ♥88 ♠94 )
  • Onslaught bonus: 37 or more monsters killed +15% Bonus.( ♣68 ♦123 ♥132 ♠141 )
  • Conquest bonus: 45 or more monsters killed +25% Bonus.( ♣114 ♦205 ♥220 ♠235 )
  • Tamper bonus: 1 or more trap disarmed +10% Bonus.( ♣46 ♦82 ♥88 ♠94 )
  • Perception bonus: 2 or more secret doors discovered +10% Bonus.( ♣46 ♦82 ♥88 ♠94 )
  • Mischief bonus: 26 or more breakables smashed +8% Bonus.( ♣36 ♦66 ♥70 ♠75 )
  • Vandal bonus: 34 or more breakables smashed +10% Bonus.( ♣46 ♦82 ♥88 ♠94 )
  • Ransack bonus: 41 or more breakables smashed +15% Bonus.( ♣68 ♦123 ♥132 ♠141 )


  • Chests: 1
    • 1 trapped behind a secret door in the southern part of the upper floor, west of the shrine
  • Collectables: Three
    • Bookshelf just south of the first fragment
    • Bookshelf just east of the second fragment
    • Bookshelf just south of the third fragment
  • NPC rewards: None


Name(picture) CR Type Race
Black Widow(view)
Black Widow.png
 ♦2Normal ♥4Hard ♠7Elite Vermin Spider
Brown Rat(view)
Brown Rat.jpg
 ♦0.25/0.5Normal ♥1Hard ♠3Elite Animal Rat
Brown Spider(view)
Brown Spider.jpg
 ♦1Normal ♥3Hard ♠6Elite Vermin Spider
Cave Bat(view)
Cave Bat.jpg
 ♦0.25/1Normal ♥0.50/3Hard ♠2/5Elite Animal Bat
 ♦3Normal ♥5Hard ♠7Elite Undead Ghast
 ♦0.5/6Normal ♥2Hard ♠4Elite QL3: ♦1Normal ♥3Hard ♠5Elite Undead Ghoul
Greater Arcane Skeleton(view)
 ♦3Normal ♥5Hard ♠8Elite Undead Skeleton
Rotting Dwarf Zombie(view)
 ♦2Normal ♥4Hard ♠7Elite Undead Zombie
Rotting Elf Zombie(view)
 ♦2Normal ♥4Hard ♠7Elite Undead Zombie
Rotting Halfling Zombie(view)
 ♦2Normal ♥4Hard ♠7Elite Undead Zombie
Rotting Zombie(view)
Rotting Zombie.jpg
 ♦2Normal ♥4Hard ♠7Elite Undead Zombie
Skeleton Archer(view)
Skeleton Archer.jpeg
 ♦2Normal ♥3Hard ♠5Elite Undead Skeleton
Skeleton Skirmisher(view)
Skeleton Skirmisher.jpg
 ♦2Normal ♥2Hard ♠3Elite Undead Skeleton
Skeleton Veteran(view)
Skeleton Veteran.jpg
 ♦1Normal ♥2Hard ♠3Elite Undead Skeleton
Skeleton Warrior(view)
Skeleton Warrior.jpg
 ♦0.5/2Normal ♥1/4Hard ♠3/7Elite Undead Skeleton
Small Brown Spider(view)
Small Brown Spider.jpg
QL3: ♦0.25Normal ♥0.5Hard ♠2Elite; QL?: ♦2Normal ♠1Elite Vermin Spider

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