It wasn't difficult to realize that the problem was occurring on the other side of the rift. All I had to do was find one of the portals and jump through.
(Divination +10)
I crossed through one of the portals and entered the Elemental Plane of Fire. It took a lot of magic not to succumb to the intense heat and brightness.
It had seemed like a useless piece of information at the time, but my reading into magical things had mentioned a great castle where the Fire Lord lived. I went in the direction I had read about and found the castle. Once I entered, I saw the Fire Lord who was causing all of the trouble.
(Geography +10, Arcana +10)
The Fire Lord was ten feet tall and continuously engulfed in flames. The smell of brimstone hung in the air as he looked down upon me. He seemed to be more curious than angry at my intrusion.