This Audio book wasn't quite what I expected. returnreturnJoey Harker is a teenager with a weird social studies teacher. They have an "exam" to be left int he middle of town and walk home. Along the way Joey walks right into an alternate dimension. This isn't like Star Trek alternate dimension its more like crazy Hitchikers guide the galaxy alternate dimension. Apparently he's a Walker, like ever Joe Harker in every Earth in every dimension. The Best of the best. Walkers, dimension harkers, are this multiverse delithiom crystals. They power the ships of the evil world. returnreturnHe gets involved in battles between Magic worlds and Science worlds. Ours is neihter, but slowly leaning towards science. Inter-world (the multivers FBI?) can't let either side win, and they aren't powerful enough if they wanted to. returnreturnI felt like they tried to put a whole lot into this really fast, and I felt it ended rather abruptly. Not until I went to review did I learn it was the first in a trilogy, made the ending make more sense, but evne more so it should have been slower paced. It was in tendint for the Juvenille/YOung Adult Market so maybe that has something to do with it. returnreturnreturnAll in all not bad, if you are into that kind of hting give it a whilr