Recognize the entrance
What the doorway looks like
An open-book symbol sits above the Library's usual key lock.
Book-marked doorway


Original game-art examples, shown facing upward where relevant. Door textures and appearance can vary with the floor or item effects.
What counts toward progress?
Check active swaps, duplicates, pill uses, held trinkets and reroll risks through fifteen illustrated examples.
Transformation progress guide →Find the entrance
How to enter Library
Open the Library door and check the books on its pedestals.
What you can find
Rewards and opportunities
Books from the Library pool, with possible extra supplies depending on the layout.
Transformation requirementsBefore you commit
The risk to plan around
Picking up a book replaces your current active item unless a special inventory effect lets you carry another.
- Picking up three different qualifying books contributes to Bookworm.
- Some layouts include obstacles or hazards between you and the books.
Reference
Repentance rules and room variants
This guide describes the room type. Exact layouts and contents can vary. The rules use Repentance references; Repentance+ can change them.