Another murder, another unanswered question. And Detective Mendoza hates to leave things undone.

Hers was the kind of casual homicide that occurred every week in a city like Los Angeles in the sixties. Beaten, robbed, and left in an abandoned lot, Elena Ramirez's death was like many others... in fact, nearly identical to a murder that happened six months earlier—a case that Detective Luis Mendoza was never able to solve.

The

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Twelve mysteries, dozens of clues, and two detectives matching wits

Detective Jack Barnes is good at his job—no nonsense and thorough, his dogged nature makes him the best at what he does. Mr. Robert Leroy Mitchel is entirely different: a gentleman and an amateur sleuth, Mitchel is confident in his ability to find answers where the professionals cannot. But by choice or circumstance the two are thrown together in pursuit

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"The first book in an exciting new classic mystery series created in partnership with the Library of Congress, That Affair Next Door follows Miss Amelia Butterworth, an inquisitive single woman who becomes involved in a murder investigation after the woman next door turns up dead. Miss Amelia Butterworth is unmarried but quite content as an observer of human nature-until late one evening she notices a man and woman enter the supposedly empty house...

First published in 1923, Jim Hanvey, Detective is a collection of seven stories that originally appeared in The Saturday Evening Post and features private eye Jim Hanvey in classic whodunit style mysteries. Described as the "backwoods Nero Wolfe," the genial Hanvey befriends "good guys" and criminals alike to get the job done.

Bank robberies, jewel heists, and all-purposes cons—none are a match for Octavus Roy Cohen's waddling sleuth.

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No one saw her leave, and no one knows where she went...

It's a perfectly typical day for Lowell Mitchell at her perfectly ordinary university in Massachusetts. She goes to class, chats with friends, and retires to her dorm room. Everything is normal until suddenly it's not—in the blink of an eye, Lowell is gone.

Facts are everything for Police Chief Frank Ford. He's a small-town cop, and he knows only hard evidence

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"A scandalous and satisfying behind-the-scenes look at the glamorous world of opera, from an insider who was herself the lead soprano at the Met for many years, and a popular performer on radio and television. The backstage drama at the Metropolitan Opera often rivals the onstage performances but generally doesn't prove fatal. Not so for prompter Rudolf Salz, who chose a most inopportune moment during the second act of Wagner's Die Walküre to die...

"Hailed by critic Anthony Boucher as "one of the best detective stories of modern times," this classic tale by Grand Master Dorothy Salisbury Davis combines suspense and psychological insight as a priest and a police detective both race to find a self-confessed murderer before he is compelled to kill again. "Bless me, Father, for I have sinned ..." Father Duffy has heard many confessions through the years, but none quite so disturbing as the one he's...

"This entertaining short story collection features Professor Augustus S.F.X. Van Dusen, nicknamed "The Thinking Machine"-a brilliant but abrasive scientist who proves time and again that any puzzle can be solved by the application of logic. Could you beat the world chess master in one try if you'd never played or studied the game? Or plot and execute a successful escape from an inescapable prison cell? And could you do it at the turn of the twentieth...