Book of Secrets

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Book   of   Secrets
Item icon
Item altar
"Tome of knowledge"
Table dividing line 1.png
Item ID
5.100.287
Table dividing line 2.png
Recharge Time
6 rooms 6 rooms
Table dividing line 3.png
Collection Grid
Added in Afterbirth / Removed in Repentance(page 3, column 2, row 3)
Removed in Afterbirth(page 3, column 2, row 9)
Added in Repentance(page 3, column 3, row 3)
Unlock Method
Book of Secrets Defeat Satan as Eden

Book of Secrets is an unlockable activated item.

Effect[edit | edit source]

  • Gives the effect of 15►Treasure Map Treasure Map, 15►The Compass The Compass, or 15►Blue Map Blue Map for the duration of the current floor.
    • Removed in Repentance It is possible to receive an effect of an item Isaac already has, effectively doing nothing.
    • Added in Repentance Book of Secrets cannot give mapping effects that Isaac already has. If he has every mapping effect active, Book of Secrets gives the effect of 15►X-Ray Vision X-Ray Vision for that floor when used.
  • Added in Afterbirth † This item belongs to the Bookworm set. Collecting three items from this set will transform Isaac into Bookworm.

Notes[edit | edit source]

In-game Footage[edit | edit source]

Gallery[edit | edit source]

Trivia[edit | edit source]

  • This item may be a reference to an Apocryphon, or 'secret book'. This term is used to refer to early Christian writings that were written to teach 'secret knowledge' that wasn't allowed to be publicly taught.
  • Removed in Repentance Prior to Repentance, this item's description was "??????"

Seeds[edit | edit source]

PC ANVY YAPC (First floor Library)

PS4 2YVW FZ34 (Treasure Room adjacent to spawn)

Vita FHQG 1L9Y (First floor Treasure Room)


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