Grk: Operation Tortoise

When Tim discovers an environmental activist badly hurt on a beach, his sun-kissed relaxing holiday in the Seychelles takes on a more dangerous twist. He and Grk are the only ones, it seems, who want to know what happened. They find themselves speeding towards a well-guarded private island, and single-handedly foiling a dastardly plot threatening the local endangered giant tortoises.

Joshua Doder is the pseudonym of Josh Lacey, the author of Bearkeeper and the Misfitz Mysteries. He worked as a journalist, a screenwriter and a teacher before writing his first book for children, A Dog Called Grk. He lives in London with his wife and daughter.