After stumbling over a rusty old iron ring, the trapdoor that it was attached to revealed this amazing scene of time having stood still. Below Tom is his very distant relative, Sylvester Turville. An alchemist who had discovered the magical Philosophers Stone.

However, poor old Sylvester had entrapped himself in one of his own spells, over two hundred years ago. Tom managed to release him from the spell and the two had adventures for the next four and a half years. Trying to thwart the nasty solicitor, Mr Crabtree, and his accomplice, Silas Manson, while also seeing off crooks and other baddies.