When the cosmic fabric separating the dimensions rips open and spits the inhabitants of Purgatory into his hometown, Jack just happens to be in his school's basement. That's the only thing that saves him. The initial rip is so forceful it kills everyone and everything that isn't indoors or underground. The tag line for this book might be I pray the Lord my soul to take, because the creatures from Purgatory only want one thing: new, unsullied, souls. Eventually, Jack stumbles across a few other survivors. One is a deaf pit bull named Snake. Together they make their way to a safe house in New Mexico where they are forced to make their final stand. Not everyone will survive.