How do I get a demon heart?
  • 1 of 4: First, go all the way back outside.
  • 2 of 4: Once there, go northeast.  Kill imps and salamanders until you come to a place where you can go North.  Cross that place, then go west.
  • 3 of 4: You will find a demon (Tanarii) with some imps and salamanders near it.
  • 4 of 4: The demon has an irritating habit of stunning people but on the whole isn't that hard.  Take its heart and go back into the sphere.