What do you do when everything you thought you knew about the world is suddenly turned completely upside down? That's the terrifying place in which Willoughby Wren finds himself after he deliberately breaks one of his parents' most important superstitions by stepping on the cracks in the pavement. Immediately, he is flung into a world where goldfish can talk, where things from the past suddenly start appearing in the present via a break in the space-time continuum, where psychotic pigeons are seeking world domination, and where Willoughby is the only person on the entire planet who can stop them.