William Dolman has spent most of his life in children's homes feeling like an outsider. However, his life changes when he receives a mysterious parcel - a book...but all the pages are blank. William starts to have strange dreams about the book and a stranger who seems to be willing him to use it. However, the book still remains a puzzle until one night, as he tries to dodge some of the bullies at the home, he finds himself transported to a strange new world. This is where William's adventures really begin, as he - along with a selection of rather unusual companions that he meets along the way...

The New Year at Earls Boarding School starts well for Jack and his friends but danger lurks behinds the seemingly innocent face of Gerry Fellowes. Gerry, a former school bully, has been infected by a vampire who escaped from the Human Race Studies Academy after Jack and his friends accidentally opened a secret portal between the two worlds. With their memories of the alternate universe having been erased, the boys have no recollection of the vampire and no hint of the horrors ahead. However, when their other-worldly friends from the fifth dimension are sent to monitor the problem, the boys...

Room Thirteen might be the smallest bedroom at Earls Boarding School, but newcomers Jack and Simon soon discover that there's far more to their new room than meets the eye when they discover a hidden portal - a portal which leads to another school in the fifth dimension The boys quickly find themselves involved in a variety of wonderful and exciting adventures when they start using the portal and meet some of the other-worldly students who are studying there. They make many new and unusual friends including an inept witch, a student from Venus, two ghosts, a nutty gnome and even an angel....