Jenny, Billy’s sister, is missing, and an imposter from another world is trying to take her place. Billy, after discovering a mysterious key hidden away by his grandfather, finds that he is able to travel through mirrors into this other world using this magical key.
Billy meets the evil man, known simply by the people that fear him as the man with no name. This man is terrorizing this world and its people, turning most of them into mindless slaves to do as he commands. He must be stopped!
In Billy's quest to rescue his sister and grandfather, Billy finds himself facing many dangers and fearsome creatures, but also making several unusual friends along the way.