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Book of Secrets? item
Book of Secrets? is an unlockable active item in Elitium, a mod for The Binding of Isaac.
Description
Has a 65% chance to activate Book of Secrets, or 35% to do nothing.
If Birthright is held as Crice, it instead has the following chances:
• 65% → activates Book of Secrets.
• 30% → activates Crystal Ball and The Book of Sin.
• 5% → does nothing.
How to unlock?
Defeat Hush as Crice.
Transformations
Item pools
Book of Secrets? can be found in the following item pools:
| Name | Weight |
|---|---|
| Treasure Room |
1.0/1.0
|
| Secret Room |
1.0/1.0
|
| Library |
1.0/1.0
|
| Greed Treasure Room |
1.0/1.0
|
| Greed Shop |
1.0/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| offensive | Can appear for  Tainted Lost. |
| book | Contributes towards the Bookworm transformation. |
Special synergies
The following special synergies and interactions for Book of Secrets? have been documented.
| Mod | Item | Synergy |
|---|---|---|
| Library Expanded | The Book of All The Books | 100% chance of activation. |
* Note that not all possible synergies and interactions are listed here.
External links
- Download Elitium from the Steam Workshop.
Guardian angel? 
Someone else's birthright 
Console 
Magic Potion 
Strange amulet 
Awakened amulet