Complex sentence: Together with Saturnyne, he hoped to save this world from the corruption that threatened it; instead they encountered Earth-238's Mad Jim Jaspers, a lunatic with the ability to warp reality.
Split into simpler sentences: Together with Saturnyne, he hoped to save this world from the corruption that threatened it. Instead, they encountered Earth-238's Mad Jim Jaspers, a lunatic with the ability to warp reality.