The Ghost

The Ghost is an unnamed NPC designed by Motion Twin artist Gwen. It appears when the player reaches a Challenge Rift for the first time, as the bearer of a tutorial message. The Ghost explains to the Beheaded that opening the chest will grant him great loot (namely a Scroll of Power, an amulet and cells) but it will be hard to get out of the rift.

Lore
There is currently nothing known about the Ghost, not even his name. It seems he is mostly a tutorial character with no real backstory.