Continuing the swashbuckling series from Duddle, author of "The Pirates Next Door" and "The Pirate-Cruncher". Every full moon, a mysterious ship is seen off the coast of Dull-on-Sea, and gold and jewellery go missing from the town. Matilda needs the Jolley-Rogers' help to investigate. Ages: 6+

Jonny Duddle overheard the story of his first book The Pirate Cruncher while sailing on a square-rigger. Since then he has written even stranger tales including The Pirates of Scurvy Sands, The Pirates Next Door, Gigantosaurus and The King of Space. The Pirates Next Door won the Waterstones Prize in 2012 and was shortlisted for the Roald Dahl Funny Prize. Now in danger of becoming a landlubber, Jonny lives in Wales with his wife, Jane, and their daughters, Daisy and Rosie.