A dangerous, alien plane where glowing frog-slimes slither and slurp, metal-skinned bird people rebuff diplomacy, and only the endless subterranean tunnels are safe (just mind the gravity-bending moles). Visitors will have to skulk around in the dark to avoid the curse carried by the sunlight. Because (have I mentioned?) the sun is the source of a powerful curse--one that covers the whole planet.
A man has been committed to an asylum for schizophrenia. The doctors are convinced that he is suffering from delusions and hallucinations. The reality: His soul has been split among three bodies, each in a different dimension, and he occasionally feels and sees what his other "selves" do.