A teenage boy follows a drunken moose down a two-dimensional river that cuts through time and matter. Arriving at new worlds outside the realm of reality, he is shocked to witness increasingly strange lands and creatures who do not seem to obey the laws of physics, logic, or even common sense. He learns that the only way to get back home is by finding an elusive, legendary being whom no one has ever met. But the being is less interested in helping the boy return home than in introducing him to the universe's greatest mystery: who he is.

Why is someone murdering all passengers and crew of Flight 2251 from two years ago? A mild-mannered underachiever is picked up by the FBI and informed that he is the last survivor of that flight -everyone else who was on board had already been eliminated - and that they would guarantee his safety if he helped with the investigation. But before the day is out an attempt is made on his life and his newly appointed FBI bodyguard is shot. The last survivor of the flight now finds himself alone and on the run for the first time in his life, evading someone he does not know who wants him dead for...