Carpenter and Quincannon novels

"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...

"Sabina Carpenter and John Quinncannon are no stranger to mysteries. In the five years since they opened Carpenter and Quinncannon, Professional Detective Services, they have solved dozens, but one mystery has eluded even them: Sherlock Holmes or, rather, the madman claiming his identity, who keeps showing up with a frustrating (though admittedly useful) knack for solving difficult cases. Roland W. Fairchild, recently arrived from Chicago, claims...

A conman always has a bag of tricks, ready to fool the unsuspecting, and almost everyone is unsuspecting until they get taken. When that happens, they turn to Carpenter and Quincannon, Professional Detective Services, to recover their money and what?s left of their dignity, and perhaps even to save their lives. When one such case leaves Sabina Carpenter the only witness to a murder, the family of the culprit vows to stop at nothing to keep her silent....

In response to a string of gold thefts in a Mother Lode mine, former Secret Service agent John Quincannon goes undercover as a newly hired miner to identify and capture the men responsible. Meanwhile, Sabina Carpenter finds herself not only making plans for her and Quincannon's wedding, but also investigating both an audacious real estate scam and an abusive young man's villainous secret.