The latest in the series, Mummy, John and Susan are taken on a thrilling Christmas adventure. "Come with me," says Father Christmas, "and I will show you the magic of kindness." "And I will undermine your vicious program of indoctrination," Mummy counters. She then proceeds to strip Christmas of all its magic and meaning, for the benefit of John, Susan and mankind in general. This book will joyfully ruin the Yuletide festival period for children and adults alike.