The Highland Falcon Thief: Adventures on Trains series by M.G. Leonard and Sam Sedgman
All aboard! Set on the last journey of the royal steam train, this high-speed story is the first in the series of detective novels, following Harrison Beck and his travel-writer Uncle Nat. 9-12-year-olds will solving the clues as the mystery of the missing brooch unfurls.
The Highland Falcon by M.G. Leonard and Sam Sedgman is available exclusively at Waterstones, £4.99.