The story sees the adventures of two 12-year-old friends who, when faced with the problems of their 21st century existence, seek the help and guidance of their friend and mentor, Mr Vortigern. Vortigern is a gentleman of great wisdom who lives in a large Victorian house together with his giant orange cat. He is also the owner of a magic slide machine which opens the way into alternative dimensions and mysterious, fantastical worlds. The two friends venture forth into these magical light projections, and in their quest to answer one of life's great unanswered questions, they encounter many new characters including explorers, hippies, a giant angry gorilla, mystical monks and a troll called Kevin.
Somewhere between Alice in Wonderland and Lord of the Rings, with a twist of eccentric English humour, Vortigern's Machine will cement James Jarvis's universal appeal.