Matthew Hawkwood Thriller Series Books 1-3. Ratcatcher, Resurrectionist, Rapscallion

The Sunday Times bestselling historical thrillers. Meet Matthew Hawkwood: soldier, spy, lover. A man as dangerous as the murderers, spies and traitors he hunts on the crime-ridden streets of London at the height of the Napoleonic wars. Book 1, RATCATCHER: The backstreets of London are harbouring turncoats, French spies and a rogue inventor with a dangerous idea that could tip the balance of war.
You don't send a gentleman to catch vermin. You send Hawkwood. Book 2, RESURRECTIONIST: In London, the death trade is booming. But there's a fine line between body snatching and murder. Hawkwood investigates, and his trail leads him to an obsessive surgeon - who has escaped from Bedlam - with a terrible point to prove. Book 3, RAPSCALLION: Britain's infamous prison ships are the only fate worse than the gallows for French prisoners of war.
But rumour tells of a sinister smuggling operation aboard, and when two Royal Navy officers mysteriously disappear, it's time to send in Hawkwood.