Accused of treason and stripped of his knighthood, Crispin Guest has survived on the gritty streets of London by reinventing himself as The Tracker, an investigator for hire who can locate lost objects and uncover secrets. When the merchant Nicholas Walcote hires Guest to investigate his young wife Philippa for adultery, he discovers an underground world of danger and dirty dealings. Philippa is indeed hiding something—but she's not the only one. Walcote himself is rumored to possess a holy relic so powerful that some would even kill for it.

December 1899. After the death of her beloved grandmother, Cleopatra Fox moves into the luxury hotel owned by her estranged uncle in the hopes of putting hardship and loneliness behind her. But the poisoning of a guest on Christmas eve throws her new life, and the hotel, into chaos. Cleo quickly realizes no one can be trusted, not Scotland Yard and especially not the hotel’s charming assistant manager.

November 1866: The grisly murder site in London's East End is thronged with onlookers. None of them expect the calmly efficient young woman among them to be a medical doctor, arrived to examine the corpse. Inspector Richard Tennant, overseeing the investigation, at first makes no effort to disguise his skepticism. But Dr. Julia Lewis is accustomed to such condescension . . .

An atmospheric debut novel set on the gritty streets of Victorian London, Some Danger Involved introduces detective Cyrus Barker and his assistant, Thomas Llewelyn, as they work to solve the gruesome murder of a young scholar in London's Jewish ghetto. When the eccentric and enigmatic Barker takes the case, he must hire an assistant, and out of all who answer an ad for a position with "some danger involved", he chooses downtrodden Llewelyn, a gutsy young man with a murky past.

Tabitha, Lady Chesterton, the Countess of Pembroke, is newly widowed at only 22 years of age. With no son to inherit the title, it falls to a dashing, distant cousin of her husband's, Jeremy Chesterton, known as Wolf. It quickly becomes apparent that Wolf had consorted with some of London's most dangerous citizens before inheriting the title. Can he leave this world behind, or will shadowy figures from his past follow him into his new aristocratic life in Mayfair? And can Tabitha avoid being caught up in Wolf's dubious activities?