Library (Greed Mode Item Pool)

Items in this pool can be found in Library themed Super Secret Rooms in Greed mode.

Activated Collectibles[]

Name	ID	Weight	Description
Anarchist Cookbook	5.100.65	1	Spawns six Troll Bombs around the room.
The Book of Belial	5.100.34	1	+2 damage for the current room. Guarantees a Devil Room or Angel Room will be open after beating a boss while holding it. Increases the chance by 12.5%.
Book of Revelations	5.100.78	1	Gives one Soul Heart, increases the chance for a Devil Room or Angel Room, and changes the boss of the current floor to a Harbinger if possible.
Book of Secrets	5.100.287	1	Gives the effect of Treasure Map, The Compass, or Blue Map for the duration of the current floor.
Book of Shadows	5.100.58	1	Creates a protective shield, nullifying all types of damage in the current room for 10 seconds.
The Book of Sin	5.100.97	1	Generates a random pickup, pill, card, or rune.
Monster Manual	5.100.123	1	Spawns a familiar from a specific selection for the current room. Spawns a familiar from a specific selection for the current floor.
The Necronomicon	5.100.35	1	Deals 40 damage to every enemy in the room.
Satanic Bible	5.100.292	1	Gives one Black Heart. Replaces the boss room item on the current floor with a Devil Deal.
Telepathy for Dummies	5.100.192	1	Gives homing tears for the current room. Also gives +3 range.
Book of the Dead	5.100.545	1	Upon use, creates a friendly Bony, Black Bony, or an orbital bone for each enemy killed in the current room. Can also create a friendly Bone Fly or Revenant.

Name	ID	Icon	Weight	Description
Missing Page 2	5.100.262		1	Grants one Black Heart. Upon taking damage that reduces Isaac's health to one heart or less, deals 40 damage to all enemies in the room. Deals 80 damage, and increases the damage of Black Hearts and The Necronomicon-like effects by 40.