The pirate crew of the Sea Wolf stumble upon an old artefact that could lead them to untold riches. The tenth adventure for Sam Silver, Undercover Pirate, from the authors of titles in the bestselling Beast Quest and Dinosaur Cove series.

Jan and Sara were already friends when one day they decided they wanted to write children's stories and it would be more fun to write them together. That was 15 years ago. Since then they've written over 130 stories - including some about ghosts, football, ghosts playing football and naughty gargoylz. Jan lives in Essex with her family and Sara lives in London with hers. They both have black cats who completely rule their lives. For more information, please visit Jan and Sara's website www.burchettandvogler.co.uk and follow them on Twitter at https://twitter.com/BurchettVogler. Keep up-to-date with Sam Silver's blog at http://samsilverundercoverpirate.blogspot.co.uk.