Book 1

The Bughouse Affair

by Marcia Muller

Published 1 January 2013

Book 2

The Spook Lights Affair

by Marcia Muller and Bill Pronzini

Published 3 December 2013
"In 1895 San Francisco young debutantes don't commit suicide at festive parties, particularly not under the eye of Sabina Carpenter. But Virginia St. Ives evidently did, leaping from a foggy parapet in a shimmer of ghostly light. The seemingly impossible disappearance of her body creates an even more serious problem for the firm of Carpenter and Quincannon, Professional Detective Services. Sabina hadn't wanted to take the assignment, but her partner John Quincannon insisted it would serve as entrée to the city's ultra rich and powerful. That means money, and Quincannon loves the almighty dollar. Which is why he is hunting the bandit who robbed the Wells, Fargo office of $35,000. Working their separate cases (while Sabina holds John off with one light hand), the detectives give readers a tour of The City the way it was. From the infamous Barbary Coast to the expensive Tenderloin gaming houses and brothels frequented by wealthy men, Quincannon follows a danger-laden trail to unmask the murderous perpetrators of the Wells, Fargo robbery. Meanwhile, Sabina works her wiles on friends and relatives of the vanished debutante until the pieces of her puzzle start falling into place. But it's an oddly disguised gent appearing out of nowhere who provides the final clue to both cases--the shrewd "crackbrain" who believes himself to be Sherlock Holmes. Fans of Marcia's Muller's bestselling Sharon McCone novels and Bill Pronzini's Nameless Detective series will applaud The Spook Lights Affair and future exploits from the annals of Carpenter and Quincannon, Professional Detective Services"--

Book 3

Conducting a dual investigation in the opium dens of San Francisco's Chinatown, Sabina Carpenter and John Quincannon search for missing millionaires against a backdrop of a brewing Tong war.

Book 5

For the firm of Carpenter and Quincannon, Professional Detective Services, stopping extortionists is not only grand, but excitingly lucrative.When a pleasant afternoon's bicycling through Golden Gate Park with a friend ends with the revelation of threatening letters, followed by a gunshot in a mansion garden, Sabina Carpenter knows this is a case that demands her immediate and undivided attention.The questions her partner John Quincannon has to unravel are not difficult: Wrixton, a wealthy banker, has met his extortionist's first demand, but the order to pay another $5,000 is too much to face. The banker's real problem is something he doesn't want to reveal. That was fine with the detective, and when he was informed that some private letters were involved and Wrixton absolutely needed them back, there was nothing more Quincannon needed in the way of background. As with so many of San Francisco's elite, the bedroom doors never seemed to stay shut.That was the easy part; far more difficult was the matter of the dead courier, murdered most foully in a locked room within a locked room, creating a trail that will take John Quincannon through most of San Francisco's less savory places and end with a riverboat trip that is anything but a relaxing cruise.

Book 6

The Bags of Tricks Affair

by Bill Pronzini

Published 6 March 2018
With two con games being run by two deadly villains, Sabina Carpenter and John Quincannon are forced to split up, but when Sabina's life is in danger, John realizes just how much she means to him.

Book 7

The Flimflam Affair

by Bill Pronzini

Published 15 January 2019

Book 8

The Stolen Gold Affair

by Bill Pronzini

Published 7 April 2020

Book 9

The Paradise Affair

by Bill Pronzini

Published 26 January 2021