The Book of Death is a reward from Death's Store. It is a pocket slot item that grants combat stats and provides a small chance to instantly kill monsters or deal damage to bosses.
The ability to craft the book can be unlocked for 500 reaper points. A cut hydrix and four Death notes are used to make the book. This requires level 80 Crafting.
The book has 100,000 charges of combat, after which it degrades to a broken, unusable state. Each book activation will use 200 charges (0.2%) of its total charge, resulting in a maximum of 500 activations. The book can be repaired by 25% by using additional Death notes.
Filling the Book of Death with all pages currently costs 7,679,820 coins.
| Requirements | Degrades | Tier | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| None | 100,000 charges | None | |||||||||
| Class | Slot | Attributes | |||||||||
 All |  |  Armour | 0 | ||||||||
 Life points | 0 | ||||||||||
| Weapons | Main | Off |  Prayer | 2 | |||||||
| Damage | - | - | Damage reduction | ||||||||
| Accuracy | - | - | PvM: 0% | PvP: 0% | |||||||
| Style | - | Style bonuses | |||||||||
| Range | - |  5 |  5 |  5 | |||||||
| [FAQ] • [doc] | |||||||||||
Passive
Book of Death being used to instantly kill a hydrix dragon.
The passive has a 1/30 chance per hit to activate.[1] When it activates, this will instantly kill the monster, or it will deal up to 5,000 damage to bosses.
The book can only activate when the target monster has a high proportion of life points[2] - it won't activate if the monster has been significantly damaged. The book is most effective when killing many high-level non-boss monsters, ideally high-level slayer tasks like Edimmu, Camel Warriors, Ripper Demons, Acheron mammoths, and Wyverns. It is essentially always more effective to use a God Book, Berserk blood essence, or damage-/accuracy-boosting scrimshaw when fighting bosses, and more cost-effective to use Attacker's insignia or other pocket slot items when fighting lower level monsters.
Creation
 | - |  | ||
|---|---|---|---|---|
| 2,000 XP | - | - | ||
| Requirements | ||||
| Crafting level | 80 | |||
| Bought the ability to make Books of Death from Death's Store | ||||
 Members only | Yes | |||
| Materials | ||||
| Item | Quantity | Price | Total | |
 | Hydrix | 1 | 26,072,143 | 26,072,143 |
 | Death notes | 4 | 1,919,955 | 7,679,820 |
| Total price | 33,751,963 | |||
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