Detective Charles Lenox is called to Oxford. A young student is missing and his mother, Lady Annabelle, is frantic with worry. Charles visits Oxford and the boy's room searching for clues. Remnants left behind are very odd, including a dead cat. And what about the card with a notation of "September Society" with a strange pink and black marking on the back?

Returning from a continental honeymoon with his wife, Lady Jane Grey, newly elected MP Charles Lenox is asked by his colleague, Ludovic Starling, to investigate the murder of his footman who was bludgeoned to death with a brick. Lenox gradually realizes that what seem to be the facts of the case may have been manipulated, and that an old friend may be implicated in the footman's death. Though a suspect is soon arrested, Lenox isn't convinced. Desperately...

Visiting his uncle's estate in Somerset for what he hopes will be a quiet working vacation, politician and new father Charles Lenox investigates a series of seemingly small acts of vandalism only to uncover a sinister plot by an adversary who may be targeting someone Lenox loves.

"It's 1876, and Charles Lenox, once London's leading private investigator, has just given up his seat in Parliament after six years, primed to return to his first love, detection. With high hopes he and three colleagues start a new detective agency, the first of its kind. But as the months pass, and he is the only detective who cannot find work, Lenox begins to question whether he can still play the game as he once did. Then comes a chance to redeem...

"A mysterious bequest of money leads to a murder in this new novel in the critically acclaimed and bestselling series whose last installment The New York Times called "a sterling addition to this well-polished series." Charles Lenox has received a cryptic plea for help from an old Harrow schoolmate, Gerald Leigh, but when he looks into the matter he finds that his friend has suddenly disappeared. As boys they had shared a secret: a bequest from a...

London, 1853: the theft of an antique painting sends Detective Lenox on a hunt for a criminal mastermind.

"In what promises to be a breakout in Charles Finch's bestselling series, Charles Lenox travels to the New York and Newport of the dawning Gilded Age to investigate the death of a beautiful socialite. London, 1878. With faith in Scotland Yard shattered after a damning corruption investigation, Charles Lenox's detective agency is rapidly expanding. The gentleman sleuth has all the work he can handle, two children, and an intriguing new murder case....