May 1915. As zeppelin bombs fall on London and with the sinking of the Lusitania, anti-German hysteria reaches fever pitch and attacks on German immigrants surge. Not even the West End of London is immune. Jacob Stein's bespoke tailoring business comes under brutal attack, leaving his safe ransacked, his daughter, Ruth, raped and Jacob dead.

London, 1851. With the opening of the Great Exhibition at hand, interest in mounting in the engineering triumphs of the railways, but not everyone feels like celebrating. In an audacious attack, the London to Birmingham mail train is robbed and derailed, causing many casualties. Planned with military precision, this crime proves a challenge to Detective Inspector Robert Colbeck who fights to untangle a web of murder, blackmail and destruction.

September 1907. George Dillman sets sail from Liverpool to New York on the Lusitania's maiden voyage. Posing as a passenger, Dillman is in fact an undercover detective hired by the Cunard Line to keep an eye out for petty crimes. But after some uneventful days aboard, the ship’s blueprints are stolen and then a body is found. As Dillman works to get to the bottom of the crimes, he makes an unusual friend, first-class passenger Genevieve Masefield, and the two uncover secrets aboard the ship that prove explosive.

In this first instalment of the Bow Street Rivals series a riot breaks out in Dartmoor prison, enabling some American inmates to escape. The twin detectives Peter and Paul Skillen catch wind of a projected assassination but the target is unknown. Trouble ensues when a woman from the Home Office vanishes; a mysterious lady turns up at the archery shooting gallery; and Paul’s gambling addiction worsens.

England, 1925. After years shut away from the world, former detective Lord Edgington of Cranley Hall plans a grand ball to celebrate his seventy-fifth birthday. But when someone starts bumping off members of his scheming family, the old man enlists his teenage grandson to help find the killer, before one of them is next.