Dimension of miracles

Dimension of Miracles is a satirical science fiction novel first published by Dell in 1968. It's about Tom Carmody, a New Yorker who, thanks to a computer error, wins the main prize in the Intergalactic Sweepstakes. Tom claims his prize before the error is discovered and is allowed to keep it. However, since Tom is a human from Earth without galactic status and no space traveling experience, he has no homing instinct that can guide him back to Earth once his odyssey begins - and the galactic lottery organizers cannot transport him home. Meanwhile, his removal from Earth has caused a predatory entity to spring into existence - one that aims to destroy him. Carmody is on the run, and he ends up transporting from Earth to Earth - different phases and realities of the planet.