Hello folks, i gotta a question about that demon's outerworld (in the planar sphere) is there anything else to be done aside's gettin the demon's heart to power-up the core, when i was in this area i was almot sleeping on the keyboard so i didnt had the patience to explore it well.
thanks 4 ur help.

No you did fine, just more demons and assorted baddies, mebbe a few trinkets and some gold, but nothing of import as long as you have a demon heart.