It's a locomotion commotion! There's treachery on the tracks! Join Detective Stanley as he escapes Narlybone for a well-deserved break from solving crimes and catching culprits. He's on his way to Gull-on-Sea, via a top-notch train, The Grand Gazelle. It's all luxury on board: plush furnishings, five-star food and a cabin crew of meerkats to attend to guests' every need. Detective Stanley can finally relax and enjoy his retirement. But will he get the holiday he deserves? Or will he be required to unpuzzle another crime? Luckily for readers of the Detective Stanley series, our favourite sleuthhound can't seem to catch a break from mysteries and mayhem. Hop on board Detective Stanley and the Trouble on the Train for twists, turns and turmoil!