From the back of the book: The Otherwhere Quest is a solitaire adventure that allows you to play your favorite Green Lantern: Hal Jordan, Guy Gardner, or John Stewart. You must find the clues that uncover the secret hiding place of the Harmony Beacon, but more importantly, you must prove yourself worthy of wielding its great power. Above all, you must hurry: only hours remain before the forces of darkness overwhelm the Otherwhere forever!