Grimrock

On the NE side there is a room full of pitfalls and a face shooting a magic ball that opens and closes the pits and a door on the other end. I have no idea how to open the door. I know I can run and stand in the way of the magic ball to interrupt the pits but I cannot seem to find a way to open the ...

Unless you kill them on a pressure plate, when you walk over the spot where you killed them you should pick them right back up.

I was wondering if there is a negative reason to sleep other then the possibility and being attacked from a mob left in the dungeon floor. One time after I found a secret when I had to face a party of undead soldiers I took a nap in a corner and was awoken by a earthquake the first second of sleep. ...