- "The head of this bronze key has been twisted around itself several times, so that it resembles a screw. If Morte is to be believed, it unlocks one of the doors in the Preparation Room."
This key is used to open the Preparation Rom door on the Mortuary 2nd Floor (X=700 Y=2300).
The key is held by Zombie Worker #782 (X=1250 Y=2870). It must be pried from its death grip, and therefore the zombie must be killed.