The sequel to Captain Blackboot's Island opens with the Captain and his crew puzzling over the whereabouts of their octopus, Oliver. Luckily James, Sally and Victoria arrive, overhear some wreckers plotting and discover that Oliver is to be made into an octopus stew A happy ending is assured, however, following their victorious battle with the wreckers, and when Oliver appears from the sea, it seems that the Wallamagrumba may not be so bad after all.