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The Library of Threnal

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Once a great center of learning, the Library of Threnal has been lost for so long that some now call it a legend.

Ruins of Threnal adpack icon.jpg
DDO Point icon.png Requires access to adventure pack: Ruins of Threnal
The Library of Threnal
Heroic level: 9
Epic level: None
Duration: Short
Heroic XP:  ♣522Solo/Casual ♦916Normal ♥961Hard ♠1,007Elite
Epic XP: N/A
Takes place in: The Library of Threnal
Bestowed by: Sal Danek
NPC contact: Sal Danek
Quest acquired in: Ruins of Threnal
Patron: House Phiarlan
Base favor: 3
Free to Play: No
Extreme Challenge: No
M library of threnal.png
Loading screen


Search for the mysterious Library of Threnal in the eastern excavation of the ruins, where Sal Danek believes it may be hidden.

The Library of Threnal is the 1st quest in the 2nd chain,The Eastern Excavation, in the Ruins of Threnal story arcIcon tooltip.pngStory arcs are chains of quests that make up a story line.
Completing all the quests in a story arc often yields a nice reward.
The Western Excavation In Need of Supplies • The Rescue • Secure the Area
The Eastern Excavation The Library of Threnal • Escort the Expedition • Hold for Reinforcements
The Abandoned Excavation The Missing Expedition • Entering the Gate Chamber • The Gate Chamber

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


  • Find the Library of Threnal inside the Eastern Excavation
  • Slay Basthuul

What to Expect

  • Traps (fixed)

Known Traps

Trap DCs

  • Two blade traps
  • One sonic trap

Tips and Misc

You can either:

  • Go as a group and clear the halls until you find the library and Basthuul,


  • Send 1 person fully buffed to run past everything and slay only Basthuul at the end. This is faster and will result in very slightly more XP, but requires a character strong enough to do it.
    • Basthuul is found in the central eastern room (with the shrine on the eastern wall).
    • Shortest route is to take the first two "lefts", then follow the winding path to the large eastern shrine room. Note that the easternmost "blocked access" symbol on the map (above right), leading to that room, is incorrect.

Bonus XP

  • Devious bonus: 10 or fewer monsters killed +7% Bonus.( ♣37 ♦64 ♥67 ♠70 )
  • Discreet bonus: 29 or fewer monsters killed +5% Bonus.( ♣26 ♦46 ♥48 ♠50 )
  • Neutralization bonus: 2 or more traps disarmed +20% Bonus.( ♣104 ♦183 ♥192 ♠201 )


  • Chests: None
  • Collectables: None
  • NPC rewards: None, until after completing the third quest in the Eastern Excavation.


Name(picture) CR Type Race
Baby Glass Spider(view)
Baby Glass Spider.jpg
 ♦1Normal ♥2Hard ♠5Elite OR From Egg: ♦1Normal ♥1Hard ♠1Elite; Vermin Spider
 ♦17Normal ♥19Hard ♠21Elite Evil Outsider Demon
Brown Spider Prince(view)
Brown Spider Prince.jpg
 ♦5Normal ♥8Hard ♠10Elite Vermin Spider
Death Stalker(view)
Death Stalker.jpg
 ♦10Normal ♥12Hard ♠15Elite Vermin Scorpion
Glass Spider Queen(view)
Glass Spider Queen.jpg
 ♦8Normal ♥10Hard ♠14Elite Vermin Spider
Granite Gargoyle(view)
Granite Gargoyle.jpeg
 ♦8Normal ♥10Hard ♠13Elite ♦22Epic Normal Monstrous Humanoid Gargoyle
Huge Rust Monster(view)
Huge Rust Monster.jpg
 ♦8Normal ♥11Hard ♠14Elite Aberration Rust Monster
Monarch Scorpion(view)
Monarch Scorpion.jpg
 ♦8Normal ♥10Hard ♠13Elite Vermin Scorpion
Ogre Leader(view)
Ogre Leader.jpg
 ♦7Normal ♥9Hard ♠12Elite Giant Ogre
Thaarak Hound(view)
Thaarak Hound.jpg
 ♦10Normal ♥12Hard ♠15Elite ♦21Epic Normal ♥29Epic Hard ♠44Epic Elite Evil Outsider Hellhound
Troll Chieftain(view)
Troll Chieftain.jpg
 ♦7Normal ♥9Hard ♠12Elite Giant Troll
Winter Wolf(view)
Winter Wolf.jpg
 ♦5Normal ♥7Hard ♠10Elite Magical Beast Wolf