Alex Langford is used to the unusual. Since Olly Spellmaker, the mad, motorbiking witch, rode into his life, he’s met a hairy boggart, a ghost that drips , and a wailing spirit called the Green Lady. So when Alex notices suspicious-looking, muddy little bootprints on the kitchen floor, he`s prepared. But even he’s shocked to discover that garden gnomes have invaded his house – through the cat flap! The gnomes claim they`re earth-elves and demand the right to live on their ancestral land. Land which happens to have Alex’s house built on it! It`s an Elf Alert – and Alex needs Olly Spellmaker`s help! Surely she`ll know how to perform an elf-eviction?