When a headless corpse is found floating in the River Thames in Victorian England it is up to Sergeant Cribb( of the agile mind and bushy side burns) and his hale and hearty sidekick, Thackery, to get to the bottom of the murder most foul. Although fighting under the LONDON PRIZE RING-RULES (bare knuckled, no rounds, spiked shoes for stomping, throws o.k. ) has been outlawed for twenty years Cribb taps into an underground bare knuckle fighting ring. They recruit the young, handsome, and jacked rookie constable Jago, to go under-cover and train as a bare knuckled boxer. Well the police procedural gallops along at a furious pace. There is a beautiful young widow with a touch of evil. Bare knuckled fights are staged surreptitiously. All together it makes for a worthwhile read.