Killer Mimic

Mimics appear to be chests until the unwary adventurer attempts to open it, at which point the mimic attacks. It's melee attacks do 3d4 crushing damage. If the adventurer runs, the mimic will use a ranged attack to paralyze them and finish them off with ranged acid attacks.

The Mimic in the Umar Cave is slightly weaker than the ones in Watcher's Keep