#287Book of Secrets"Tome of knowledge"Active item (6 rooms recharge time)
Activates one of the following map effects: Treasure Map, The Compass or Blue Map, for the duration of the current floor.

Highlights any tinted rocks and rocks with a crawl space in the room.

Cannot give effects that are already activated via any means.

If all of the effects are already active, it will provide X-Ray Vision for the current floor, opening all secret room entrances.

If used on a floor with Curse of the Lost active, it will immediately grant the X-Ray Vision effect.
This item contributes towards the Bookworm transformation. Collecting 3 items from this set will make Isaac fire an extra tear 25% of the time.
Unlock: Defeat Satan as Eden.
- Tags -- Synergies - - Links -

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Added in DLC
Unlockable Grants costume Has YouTube video Animated icon Favorite (?)