I hit 30 at the start of a new region in Hell, changed my skills. Forgot which way I was going, and ended up going back through the portal I had just came from. It put me here: https://i.imgur.com/p1KtkOS.jpeg on an island with no way off. My only recourse seems to be to go back to town and start the entire treck over. I believe this was the portal after the Djinn rematch, but I'm not entirely sure. The save was uploaded with the name Orcao.