Down the Dark River. Investigation of Inspector Corravan

London, 1878. A mysterious crime has occurred on the Thames - the body of a young girl was found among rose petals in a boat drifting downstream. The victim turns out to be the daughter of a prominent judge, and... the investigation is taken up by Senior Inspector of Scotland Yard, Michael Corravan. A former boxer and dockworker from the rundown East End of London, Corravan possesses a good street sense and agility in finding clues, but he is very surprised when exactly one week later a second woman is found dead in the boat, and then a third...
Gradually, it becomes clear that the river murders may be connected to some terrible fact of injustice in the past, for which someone has vowed to take cruel revenge. Corravan must get to the truth before London descends into a state of panic and before the killer demands another innocent victim.