A castle on a cliff overtaken by monsters - and a deadly battle on the beach. The hostage crisis is over, but Molly the gorgon and Blair the phoenix remain in the very firm clutches of Queen Bee and her Swarm. Not only that, but the determined scrags have discovered the secret to becoming shapeshifters! Hal and his friends set out to infiltrate the Swarm's hideout, a castle perched on the cliff over the coastal town of Brodon. But the confined spaces make it difficult to transform, and Hal resorts to secrecy and sabotage rather than outright dragon mayhem. A battle is inevitable, though, and the shapeshifters will have to join forces to confront the newly transformed scrag monsters of Brodon. In the epic conclusion to a two-part story, the young heroes will have to fight tooth and claw to protect the world from gangs of villainous mythical creatures...