'A thrilling and hugely entertaining adventure story' - David Walliams on The Highland Falcon Thief , the first journey in the Adventures on Trains series. The bestselling, prize-winning Adventures on Trains series embarks on a thrilling sixth adventure as Harrison Beck and Uncle Nat climb aboard the night train to Narvik, travelling to the Arctic Circle to see the northern lights for Christmas. But as their train leaves Stockholm, Hal and Uncle Nat realize they're being followed by a sinister figure, and Hal's powers of observation are tested when Uncle Nat's past comes back to haunt him. Journeying into the never ending night of the arctic winter, our railway detectives must outsmart an assassin in their most chilling adventure yet, in which nothing is as it seems. The Arctic Railway Assassin can be read as a stand-alone novel, or enjoyed as part of the award-winning Adventures on Trains series written by M. G. Leonard and Sam Sedgman. Join Hal and Uncle Nat on more stops in this thrilling series with: Murder on the Safari Star , Danger at Dead Man's Pass and Sabotage on the Solar Express.

Praise for the series: 'Like Murder on the Orient Express but better!' - Frank Cottrell-Boyce on The Highland Falcon Thief 'A first class choo-choo-dunnit!' - David Solomons on Kidnap on the California Comet ' A high-speed train journey worth catching .The best yet' - The Times on Murder on the Safari Star 'This series just gets better and better' - Maz Evans on Danger at Dead Man's Pass.