Thorium Mod Wiki
Abyssal Shadow
  • Abyssal Shadow item sprite
Stack digit 2.pngStack digit 0.png
TypeSummoningCrafting material
Use time30 Average
TooltipSummons a being long forgotten by time
Only usable in the aquatic depths
Inflicts DebuffFalse Presence.pngFalse Presence
Debuff tooltipSomething stirs in the darkness...
RarityRarity Level: 3
SellNo value
Dropped by
Entity Quantity Rate
Aquatic Hallucination 1 100%

The Abyssal Shadow is an item dropped by Aquatic Hallucinations that summons Abyssion, The Forgotten One in the Aquatic Depths. Prior to defeating Abyssion, this item cannot legitimately appear in the player's inventory; it is used upon pickup. Upon pickup, it inflicts the False Presence debuff; after obtaining three stacks of the debuff, the boss will spawn.

After the player has defeated Abyssion at least once, the Abyssal Shadow will behave like a traditional summoning item for the boss.


Used in[]

Result IngredientsCrafting Station
Call of Cthulhu.png Siren's Lyre.pngSiren's Lyre Ancient Manipulator.pngAncient Manipulator
Abyssal Shadow.pngAbyssal Shadow (3)


  • Now behaves like a proper summoning item after Abyssion has been defeated.
  • Introduced.