This time, the pair are visiting the tombs of the ancient feline kings in Egypt when they discover that a precious mask has been stolen. They have to interview tourists from around the world - including a cowardly lion, a spoiled hippo and two secretive pandas - to discover who is guilty. But the mystery is not as straightforward as it first seems.

It will take the pair on a thrilling adventure deep inside the Egyptian tombs and require all of Bones and Catson's skills to solve the crime. The second book in Buster's brand-new Sherlock Bones fiction series features puzzles - including search games, logical conundrums and shadow matches - that are woven into the action, so the reader feels immersed in the exciting detective plot.