Book review - Interworld by Neil Gaiman and Michael Reaves

Interworld is the story of Joey Harker, a young man with no sense of direction yet can walk through the myriad of worlds that make up the altiverse. Every time a major decision is made a new version of the universe  is created, one where the decision was made continues on and another with the path not taken.  Best guess is that there are trillions of alternate universes.  Each Joey Harker in those universes, whether boy, girl, or cybernetic adaptation has the ability to "walk" the In-Between and travel from universe to universe.  Some of these alternate universes are low on the technological end and have a form of magic (HEX) and some are high on the scale and excel in science complete with lasers and liquid metal type suits (BINARY).  Each is trying to conquer the other and take over the entire altiverse.  The one group standing in their was is a group of various Joey Harkers.

Don't worry.  It's not as complicated as it sounds.  It was actually a really fun read by two great and creative minds.