Dungeons & Dragons/Monsters/Crypt thing

In the Dungeons & Dragons fantasy role-playing game, the crypt thing is a type of undead creature.

Description
A crypt thing is depicted as being an undead skeleton that wears brown robes, found within its private lairs. When attacked a crypt thing will attempt to teleport its attacker to a random location.

Publication history
The crypt thing has appeared in the following publications:
 * It first appeared in the first edition Fiend Folio (1981).
 * The second edition for the Greyhawk setting in the Monstrous Compendium Greyhawk Appendix (1990).
 * Reprinted in the Monstrous Manual (1993).
 * The third edition in Living Greyhawk Journal #5 (March 2002).
 * The third edition Fiend Folio (2003).
 * The Tome of Horrors (2002) from Necromancer Games.