Following a lorry to find fuel, he discovers that it belongs to an English company making timber pit-props for coal mines back home. His suspicions of illegal activity are aroused when he sees the exact same lorry with a different number plate - and confirmed later with the shocking discovery of a body.
Freeman Wills Crofts (1 June 1879 – 11 April 1957) was an Irish mystery author, best remembered for the character of Inspector Joseph French. A railway engineer by training, Crofts introduced railway themes into many of his stories, which were notable for their intricate planning. Although outshone by Agatha Christie, Raymond Chandler and other more celebrated authors from the golden age of detective fiction, he was highly esteemed by those authors, and many of his books are still in print.