A CAR THAT VANISHED.A SECRET BURIED UNDERGROUND.A BOY WHO NEVER MISSES A DETAIL.When a priceless Bugatti prototype disappears from the locked garage of the grumpiest Scotsman in Thistlewick-on-Fell, everyone is baffled.Everyone... except James Sleuthberry.James likes facts. Order. Things that make sense.And this case makes no sense at all.No engine noise.No broken locks.No tyre marks.Just a single drop of oil... and a crumb of corn chip.With his fearless best friend Penny, his loyal dog Cluey, and a trail of clues that lead deep beneath the village, James uncovers a mystery far bigger than a missing car. Because the Bugatti isn't valuable for its speed...It's valuable for what's hidden inside it.As secret tunnels, suspicious strangers, and long-buried wartime secrets come to light, James must decide who to trust - and whether he's ready to face the truth that even grown-ups are afraid to share.Because this time, the mystery isn't just about finding the car.It's about what someone was desperate to keep buried.Perfect for readers who love: Clever kid detectivesHidden tunnels and secret roomsBig mysteries with real cluesHumour, heart, and high-stakes adventure