# Hollow Fossil Hollow Fossil is a fossil type. ## Item acquisition Drops from completing Crystal Spire node by killing the boss Stygian Spire (in Abyssal Depths biome in the Azurite Mine.) ### Monster restrictions This item can be acquired from the following monsters: - Stygian Spire Can be acquired in one of two ways in the Azurite Mine: - Is sometimes sold by Niko the Mad for 1 000 000 Azurite - As a drop from the following node that Contains Fossils: - Crystal Spire (Abyssal Depths) There are additional ways to acquire fossils. Read Fossil article for details.