Pirates, monsters, missing friends and tales of the high seas continue the complicated and bizarre life of Arthur Penhaligon when a hospital room fills with water, turning into the menacing Border Sea complete with sailing ships...
Arthur Penhaligon thinks that he has escaped the perils of the other realm and the House, but a call from Dame Primus sends him back to save his family and his world as the villainous Grim Tuesday finds a way to take control of the Lower house.
In his first days at a new school, Arthur Penhaligon is given a magical clock hand, setting him on a surreal adventure and bringing the appearance of the villainous Mister Monday and his henchmen.