To the residents of a remote Cornish village their medieval archway is nothing more than a quaint monument. But when a mysterious creature begins slaughtering people, 18 year old Jake discovers something bizarre: the archway hides a secret doorway. But what's on the other side? Village madman Radford Goon seems to know. And soon Jake realises that Goon is searching for a great power in the world beyond the door: an evil from the dawn of time known as the Charon. A power that can annihilate entire worlds. Before Jake knows what is happening he and his stepsister Emily are swept up in the conflict of a fantastic world. But time is ticking. They have five days to shut the doorway. And if they fail... their own world is doomed. The end of all things has begun...