Oscar is a loveable, fluffable Pussy Cat who dreams of becoming a Mousecateer just like his brother Big Sid. But on his very first test, Oscar finds himself chased by a snarling beast into the safety of the nearest tree, only to discover that this is no ordinary tree, but an ancient lost portal that transports him into a mysterious world of Chuggles, witches and wizards. Follow Oscar on his incredible adventure as he helps Nana Goodwitch and her beloved Chuggles defeat the evil witch Grezella and the dread Jugpaw. Illustrated throughout. Ages 8 and over.