Anticipating a dreadful summer alone, young Alfie Bloom unexpectedly inherits a castle which conceals a centuries-old, dangerous secret that threatens everyone who lives within one thousand miles.

"In this second book in the Knights and Bikes series, best friends Demelza and Nessa are always up for adventure. After all, what else is there to do on the sleepy island of Penfurzy? The two girls have discovered a magic world of myth and legend in a submerged castle just off the island, and now, accompanied by their pet goose Captain Honkers, are on a quest to help a headless knight (or rather, a knight who is JUST a head) find treasure. They set...