When Tom accidentally crosses to the Otherworld in search of his missing grandfather, he is dismayed to learn of another reason why he's been drawn to this mystical land. The Lady of the Lake has a task for him. He must travel to Avalon and wake King Arthur from his enchanted sleep. Tom discovers the ancient stories are real - and so are ancient enemies. A magical tale of fantasy and fun, for older children and all lovers of Arthurian legend.