In 1994, a manuscript signed by John H. Watson, MD is found in a safe in St. Paul, Minnesota. It contains the story of Sherlock Holmes and Watson traveling to Minnesota to track the arsonist known as the Red Demon.

The arrival of his lowlife cousin, Ulysses S. "Useless" Grant, spells trouble for Paris Minton and his friend, Fearless Jones, as they become embroiled in a bizarre case involving mysterious women, desperate blackmail victims, cheating business partners,and murder.

Nikki Griffin, a private-investigator when she isn't running her small bookstore, is on a case. The matriarch of one of the wealthiest San Franciscofamilies has been defrauded by a con-man, and her furious son enlists Nikki to find the money. And find the con-man. Nikki isn't a fan of men who hurt women. Her secret mission, born of revenge and trauma, is to do everything she can to remove women fromdangerous situations-and to punish the men responsible....

In 1950s New York, a lonely private detective afflicted with Tourette's Syndrome ventures to solve the murder of his mentor and only friend.

"London, 1892. Private enquiry agents Cyrus Barker and Thomas Llewelyn receive in the mail an unexplained key stamped with the letter Q. Barker, recognizing it for what it is, uses the key to unlock an anonymous door in the alleyway, which opens to an underground tunnel leading to Downing Street. The Prime Minister has a small task for Cyrus Barker. A Foreign Office agent stole a satchel in Eastern Europe, but was then himself murdered at Charing...

Tracing their ancestry to a small town while honeymooning in Ireland, newlyweds Regan and Jack Reilly learn disturbing information about their families, a discovery with which they are aided by Jack's Colleagues at the Major Case Squad.

Having lied and confessed to a murder he did not commit in order to protect Watson, Holmes moves back home to London in order to avoid jail time, so Watson follows.

"London, 1855: A young and eager Charles Lenox faces his toughest case yet: a murder without a single clue. Slumped in a first-class car at Paddington Station is the body of a young, handsome gentleman. He has no luggage, empty pockets, and no sign of violence upon his person - yet Lenox knows instantly that it's not a natural death. Pursuing the investigation against the wishes of Scotland Yard, the detective encounters every obstacle London in 1855...

It is every mama's dearest wish that her daughter marries well. But how to ensure that a seemingly earnest suitor is not merely a fortune hunter? Rosalind is involved in just such a case, discreetly investigating a client's prospective son-in-law, when she is drawn into another predicament shockingly close to home. Rosalind's estranged father, Sir Reginald Thorne--a drunkard and forger--has fallen into the hands of the vicious scoundrel Russell Fullerton....

Still haunted by his encounter with Tyranthus Slaughter, Matthew Corbett is forced to confront a figure from his past who is causing explosions in Matthew's neighborhood.