Examining the burning death of a south London woman, superintendent Duncan Kincaid discovers that the case is disturbingly similar to a missing-persons investigation being covered by his lover and partner Gemma James, a situation that leads them to discover additional abductions.

Days after the encounter at the Swiss waterfall that claimed the lives of Sherlock Holmes and criminal mastermind Professor Moriarty, Pinkerton detective agent Frederick Chase and Scotland Yard Inspector Athelney Jones, a devoted student of Holmes's methods of investigation and deduction, must track down a sinister figure who is determined to stake his claim as Moriarty's successor.

Detective Inspector Vincent Ruiz doesn't know who wants him dead. He has no recollection of the firefight that landed him in the Thames, covered in his own blood and that of at least two other people. A photo of missing child Mickey Carlyle is found in his pocket-but Carlyle's killer is already in jail. And Ruiz is the detective who put him there. Accused of faking amnesia, Ruiz reaches out to psychologist Joe O'Loughlin to help him unearth his memory...

"It is not the custom for the commander of Special Branch to receive a royal summons-- so Thomas Pitt knows it must be for a matter of the gravest importance. The body of Sir John Halberd, the Queen's confidant, has been found in the shallow water of the Serpentine in Hyde Park, bearing the evidence of a fatal blow to the head. At Her Majesty's request, Sir John had been surreptitiously investigating Alan Kendrick, a horse-racing enthusiast who...

Rogers was handsome, charming, and rich-- until someone killed him in the hallway of his million-plus-pound house. Was he killed for passion, professional jealousy, or plain old money? Slider soon discovers that nothing is as it seems.

When Commander Thomas Pitt is ordered to protect a young woman visiting London from Spain, he cannot see why this is a job for Special Branch. When she disappears in the dead of night from Angel Court, however, he is faced with a dangerous mystery. Sofia preached new, and some say blasphemous, religious ideals, and her life had been threatened. But Pitt senses there is some deeper and more dangerous reason for her kidnap -- if that is what it is....

"In the tradition of Elizabeth George, Louise Penny, and P. D. James, New York Times bestselling author Deborah Crombie delivers a powerful tale of intrigue, betrayal, and lies that will plunge married London detectives Duncan Kincaid and Gemma James into the unspeakable darkness that lies at the heart of murder. Recently transferred to the London borough of Camden from Scotland Yard headquarters, Superintendent Duncan Kincaid and his new murder investigation...

On a patrol boat near Waterloo Bridge, police superintendent William Monk notices a young couple engaged in an intense discussion. Seconds later, the two plunge to their deaths in the icy waters of the Thames. Was it an accident, a suicide, or a murder? Ever the investigator, Monk learns that the woman, Mary Havilland, had planned to marry the fair-haired man who shared her fate. He also discovers that Mary's father had recently died in a supposed...

While Gemma James investigates the murder of a young nanny who may be one of a series of victims, Duncan Kincaid uncovers information that puts those closest to him in danger. --Publisher. The pretty girl in the white dress looks as if she's sleeping. But Reagan Keating has been murdered, and the lead detective, DI Kerry Boatman, turns to Gemma James for help. Gemma has a personal connection to the case: Reagan was the nanny of a child who attends...

Supt. Kincaid of Scotland Yard investigates the death of a lady living in his building. Ill with cancer, she asked friends to help her commit suicide, but Kincaid suspects the morphine that killed her was administered by someone intent on murder, not euthanasia.