Terraria Mods Wiki
Treasure Bag.gif Expert Mode-Only Content: This information (or parts of it) applies only to Expert mode and Expert mode worlds.
This is developer content! It is dedicated to: Cerberus
Aleister Book
  • Aleister Book item sprite
Stack digit 1.png
TypeAccessoryCrafting material
TooltipA legendary book of the Mega Therion
10% increased minion damage
+2 max minions
Maybe you could make it stronger...?
There's a note written onto the book:
I need more powerful souls; *****, *********, *********
RarityRarity level: 8

Aleister Book is a Hardmode tier Expert Mode-exclusive accessory that is obtained from the Treasure Bags when opened in Hardmode. When equipped, it increases your minion damage by 10% and grants +2 minion slots. After killing certain bosses, the buffs granted become stronger.


Used in[]

ResultIngredientsCrafting station
The Book of LawThe Book of Law
Ancients Awakened/Quantum Fusion AcceleratorQuantum Fusion Accelerator


  • This, along with A Page of the Rune Book, are the only accessories obtainable from developer bags, and can be upgraded into EX variants.
  • The bosses required to empower the book are unknown.
Equipable Items: Mushium Shirt (Ancients Awakened).png Armor • Ash-Proof Vest (Ancients Awakened).png Accessories ( Demon Gauntlet (Ancients Awakened).png Combat ) • Midnight Scarf (Ancients Awakened).png Vanity