Maze has 2 levels, then you descend into the pit levels - solve a riddle there and finally find a room with 3 rune keys - one of these is the key you want for the door.
Torches are a hint to avoid a trapped corridor. If you did maze 1 => go through the portal (choking kid) - you will be teleported into a small room and from then on into maze lvl 2.
Look at my maze1 map => torches are number 5+6 - but that's no way to leave maze lvl 1. Only via portal at 15.
I got that. Thought the 3 rune keys where there. Soif I go through the portal in maze1 to the choking kid, will get to maze 2 where I can find the rune keys to get back to the prison right?