When I finished level 3 I was taken to a cottage where I was jumped by skeletons, then afterward I was zipped back to a dungeon full of teleporters. Each teleporter took me to some other dungeon. Was that level 4, and how do I get back there?
The cottage that you were transfered by the teleporters was an illusion. You were still in the dungeon. Use those teleporters to explore the whole dungeon. You will find some good items and also you will be able to go to some areas of the dungeon that you could not go before. Mark them on your map in order to remember where they transfer you.
You can have my absence of faith you can have my everything...