Eighteen passengers. Seven stops. One killer.In the early hours of Christmas Eve, the sleeper train to the Highlands is derailed, along with the festive plans of its travellers. With the train stuck in snow in the middle of nowhere, a killer stalks its carriages, picking off passengers one by one. Those who sleep on the sleeper train may never wake again.Can former Met detective Roz Parker find the killer before they kill again?All aboard for . . . Murder on the Christmas ExpressPraise for The Christmas Murder Game:''The perfect gift for quizzers and mystery addicts . . . A delicious locked room mystery crammed with cryptic clues, secrets in sonnets and a deadly game. But it''s more than a series of puzzles, it''s also an entertaining exploration of relationships and a riveting read'' VAL McDERMID ''Perfectly pitched for cold nights and warm fires. A lovely Golden Age tribute'' SINEAD CROWLEY ''A perfectly plotted festive mystery'' SUSI HOLLIDAY''Clever and twisty'' CRIME MONTHLY ''One for book lovers that can''t get enough of mystery fiction - even during Christmas'' THE SUN''Packed with riddles, anagrams and puzzles, this is an engaging murder mysterythat will grip you until the end'' DAILY MIRROR''This is the perfect Christmas book. Get it for yourself to read when the nights are cold and dark and give it as a present. To everyone!'' MARTYN WAITES''Curl up by the fire (and lock all the doors) for this Christmas cracker of a book'' C.S. GREEN''Utterly original and breathtakingly intriguing . . . A must-read this Christmas'' STEPH BROADRIBB''The perfect updating of the classic Christmas Country House mystery . . . Fabulous festive fun'' DEREK FARRELL''The perfect Christmas read . . . and puzzles galore for both readers and the players of the game'' W.C. RYAN