The Night Detectives is about a private detective agency out to prove that a suicide wasn't a suicide. Free.
In Cha's novel Follow Her Home, a detective tries to solve a case featuring a corpse in a trunk. Free.
K.J. Larsen, who is actually three sisters, will sign a book called Some Like It Hot. Free.
Death and the Courtesan is about "the most desirable courtesan in Regency London," a knife, and a murder. Free.