Cryptic Old Skull

"The great sacrifice of one, to resurrect another...The altar of hecatomb..." The Cryptic Old Skull is an essential endgame item, used to summon the very last Hardmode boss, The Doom. It appears to be a screaming version of the Mechanical Skull, albeit without the wind-up and also without being mechanical. It is a placeable object. It can be used for decoration, albeit its main purpose is summoning The Doom.

In order to advance to the next step, the player must place the skull on a Hecatomb Altar and then right click it (it signifies if it is right clickable once it becomes yellow and upon mouse hovering, it shows an icon of the skull.) Upon doing so, a message will appear. "Fleshilite has appeared in the world!", above the message "You have offered a great future sacrifice. Be prepared.". Upon these two messages, Fleshilite Ore will appear underground. It is about as rare as Orichalcum Ore.