The final adventure in the bestselling bookwandering series for readers aged eight to twelve A Waterstones Best Book of the Year When Tilly, Oskar, Milo and Alessia venture into King Arthur's realm in search of the wizard Merlin, they discover that the magic of bookwandering is not at all what they thought. Together, they must journey into myth and legend - to bargain with the trickster Loki and unlock their destinies with the help of the Three Fates - and find a way to untangle the Alchemist's grip on the world's imagination. To save Pages & Co. and the very foundations of bookwandering, Tilly and her friends will have to learn the true power of imagination in a thrilling final adventure, but an unexpected enemy stands in their way . . .