Stuck in the sweltering summer heat of Florence, private investigator Sandro Cellini delves into a case where a man seems to have vanished into thin air.

"Framed in the doorway of Hercule Poirot's bedroom stands an uninvited guest, coated from head to foot in dust. The man stares for a moment, then he sways and falls. Who is he? Is he suffering from shock or just exhaustion? Above all, what is the significance of the figure 4, scribbled over and over again on a sheet of paper? Poirot finds himself plunged into a world of international intrigue, risking his life--and that of his 'twin brother'--to uncover...

Cat Deluca of the Pants On Fire Detective Agency is driven to clear the good name of her client, Cleo Jones, after Cleo's cheating husband turns up dead and she becomes the prime suspect.

When his hotshot lawyer boss is charged with the murder of his girlfriend and subjected to the death penalty, Stanley Hastings endures a nightmarish, sensational trial that is hampered by the unavailability of key witnesses and his ties to the defendant.

Savannah is more than happy to help her good friend, Detective Sergeant Dirk Coulter investigate the death of the wife of Dr. Robert Wellman, owner of a popular weightloss clinic. She was found dead at the bottom of a cliff outside the Wellman's seaside estate--and it's clear she didn't go down without a fight.

When Helene Strauss, the world-famous creator of the Helene doll, has several suspicious brushes with death, PI Savannah Reid is hired to find out who wants Helene dead and discovers that there are more than a few bad apples on Helene's family tree.

Korean-American adoptee Siobhan O'Brien has spent much of her life explaining her name and her family to strangers, but a more pressing problem is whether to carry on the PI agency that her dead boss unexpectedly left to her. Easing into middle age, Siobhan would generally rather have a glazed donut than a romance, but when an old friend asks Siobhan to find her daughter who has disappeared from her dorm, the rookie private detective's search begins...

As Halloween approaches, P.I. Savannah Reid finds herself knee-deep in tricks and treats when a member of The Skeleton Key Three, a celebutante clique, goes missing, and the wealthy host of the annual Halloween bash is murdered.

Boone Daniels lives to surf. Laid back, ultra-California cool, the cop turned PI begins each day with the Dawn Patrol, a close-knit group of surfers who not only ride waves together but have each other's backs out of the water. So when one of their own is murdered - especially an icon like Kelly Kuhio, a local hero - and another surfer, a young punk from the Rockpile Crew, stands accused, their small world is rocked to its core. And when Boone agrees...

In Dorothy L. Sayer's third Lord Peter Wimsey novel, Unnatural Death, Agatha Dawson, a woman of advancing years, appears to suffer a natural demise. Amidst the façade of calm, a disquieting unease piques the curiosity of aristocratic crime fighter Lord Peter Wimsey, prompting him to send his investigator, Miss Catherine Climpson, to do some sleuthing in the quaint village of Leahampton. A mystery develops when the body of one of Dawson's maids is...