The sixth book in the comic fantasy series Tales from the Five Kingdoms - in which the borders are broken and the Five Kingdoms changed for ever. The Web of Power which keeps the Five Kingdoms safe from evil is under threat. Foyce is determined to destroy it so she can take a terrible revenge on her step-sister, Gracie Gillypot. Meanwhile the five Royal Families are in turmoil. Queen Bluebell is fed up with her tedious grandson, Vincent; Prince Tertius is suffering from the endless nagging of his new wife, Princess Fedora - and on top of everything else there's a big tournament coming up. Things come to a head when Gubble the troll crashes into King Frank's study, and he and Gracie are thrown into a dungeon. A band of fearsome werewolves are gathering in the forests, and Foyce is among them. Will Gracie, Marcus and a handful of bats be able to save the kingdoms from total disaster?