"Good-for-nothing rotter Spangles McNasty and his best friend Sausage-face Pete launch a plan full of trickery, treasure maps and disguise to get their thieving hands on the legendary pirate hat, the very sparkly diamond skull, when it is exhibited in Bitterly Museum ... But they haven't reckoned on local boy Freddie Taylor and his cunning plan to mix things up with a clever hat trick!"--Back cover.