This maze was a prison.
The last level for V1.5.36.
There are lots of switches on this level right from the start. Just hit them all.
There are quite a few hidden rooms and pathways. Detect can help here.
The teleport portal can be seen through a locked door near the beginning of the level.
There is a statue through a locked door near the beginning of the level that you can offer an ingredient to summon monsters. This is good for EXP and some drops only.