Book of the Dead

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Book   of   the   Dead
Item icon
Item altar
"Rise from the grave"
Table dividing line 1.png
Item ID
Table dividing line 2.png
Recharge Time
Removed in Repentance4 rooms 4 rooms
Added in Repentance6 rooms 6 rooms
Table dividing line 3.png
Collection Grid
Removed in Repentance(page 5, column 20, row 3)
Added in Repentance(page 5, column 1, row 4)
Unlock Method
Book of the Dead Defeat Delirium as The Forgotten The Forgotten
Added in Afterbirth †

Book of the Dead is an unlockable active item added in The Binding of Isaac: Afterbirth †.

Effects[edit | edit source]

  • When used, spawns one of the following for each enemy already killed in the current room:
    • An orbital bone familiar (very common).
    • A friendly Bony (uncommon).
    • Added in Repentance A friendly Bone Fly (uncommon).
    • A friendly Black Bony (rare).
  • This item belongs to the Bookworm set. Collecting three items from this set will transform Isaac into Bookworm.

Notes[edit | edit source]

  • Orbital bones deal contact damage equal to Isaac's damage at the time it was spawned and repel enemies that touch them.
    • Removed in Repentance They block 3 shots or deal 2 ticks of contact damage before being destroyed.
  • Bonies deal 8.3 contact damage and 5 damage with thrown bones.
  • Black Bonies will explode on death, dealing 40 damage to enemies it hits. The explosion will not hurt Isaac, but will knock him back.
    • Added in RepentanceBlack bony's death explosion no longer knocks back Isaac.
  • Internally, the Book tracks each position an enemy was killed in the current room, and uses those locations as spawn points for bone orbitals and Bonies; using the book gives a **high probability** for each location to give one of them.
    • If one of these locations doesn't give a bone orbital or bony, it can still give one if the book is used in the same room without leaving. However, once a location gives something, it cannot do so again.
  • Using the book in a room that had no enemies or was re-entered does nothing and expends the charge.
  • Orbital bones occupy the same area around Isaac as Blue Flies, meaning Isaac can have an incredibly dense ring of bone orbitals around him that nullifies most attacks.
    • Having a large amount of blue flies can create gaps in the ring of bone orbitals that leave Isaac vulnerable in those spots.
  • Friendly monsters killed in the current room can also be used by Book of the Dead.
  • Destroying black poop will damage the friendly Bonies acquired from this item.
  • The nature of this item makes it fairly useful in Greed mode/Greedier mode.

Interactions[edit | edit source]

In-game Footage[edit | edit source]

Unlockable Achievements[edit | edit source]

  • Mystery Egg
    Mystery Egg - Spawn three charmed enemies in the same room.

Seeds[edit | edit source]

PC Added in Repentance 37NG LGBJ (Tresure Room south of spawn)

Gallery[edit | edit source]

Trivia[edit | edit source]

  • The Book of the Dead has been added in Booster Pack #5, after the initial release of the DLC.
  • The Book of the Dead is a collection of ancient Egyptian funerary texts made out of papyrus, consisting of magic spells intended to assist a soul's journey through the Duat (underworld) and into the afterlife.
  • The quote "Rise from the Grave" is a reference to the beginning screen of the video game Altered Beast.

Bugs[edit | edit source]

Bug Bug! If sufficiently many bone orbitals are created, other familiars may disappear. Collecting a new familiar or resuming the run will restore the missing familiars.

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