Another one in the series starring the Railway Detective. A Yorkshire gentleman decides to commit suicide by walking in front of a train. Not nice. Turns out he was an ex-army colleague of Colbeck's boss, and went to his death with a note for him in his pocket. So Colbeck is sent to investigate. Turns into something more complex when it is revealed that the wife disappeared a few weeks ago, and hasn't been seen since. There's then a variety of avenues, including finance, revenge and love before the true events come to light. Well written, as usual, and left me guessing about what had happened until the end.