As a matter of fact , there is a room 1 level up before you enter Maze of madness, which keeps spawning Snails.
All you have to do is kill them close the door and walk away to the end of the corridor.
When you come back there are Snails again etc etc.
Indeed a teleporter set to invisible, and at the goal a second teleporter invisble and switched off, and a hidden pressure plate which
switches it on (toggle) when the party steps out, so that you can get back again.
Greetings and thanks for this great mod.
Perhaps you can answer this question:
When you start the game there is a very high ceiling, how did you do that in the editor??
Is it a custom texture or is it really that high?