Colorado Parks & Wildlife Research Library

In the sprawling, half-timbered mansion in the affluent suburb of Swinly Dean, Aristide Leonides lies dead from barbiturate poisoning. An accident? Not likely. In fact, suspicion has already fallen on his luscious widow, a cunning beauty fifty years his junior, set to inherit a sizeable fortune, and rumored to be carrying on with a strapping young tutor comfortably ensconced in the family estate. But criminologist Charles Hayward is casting his own...

Faith Usher had a decidedly morbid personality. She talked about taking her life, and kept cyanide in her purse. So when she collapses and dies from a lethal champagne cocktail in the middle of a high society dinner party, everyone calls it suicide—including the police. But Archie was watching it all, and suspects it was murder. So does Nero Wolfe, especially after he's warned by four men against taking the case. For the world's most formidable...

Detective genius Nero Wolfe and his assistant, Archie Goodwin, are private investigators based in New York. With Wolfe's unmatchable wits and Archie's tireless legwork, no mystery is unsolvable. In this installment, Wolfe must prove the innocence of colleague Orrie Cather who is being charged with the murder of Isabel Kerr. As Archie deals with a colorful cast of characters, including Isabel's sister, brother-in-law, and benefactor, Wolfe uses mathematics...

In this startling historical mystery, unique in the author's canon, Agatha Christie investigates a deadly mystery at the heart of a dissonant family in ancient Egypt. Imhotep, wealthy landowner and priest of Thebes, has outraged his sons and daughters by bringing a beautiful concubine into their fold. And the manipulative Nofret has already set about a plan to usurp her rivals' rightful legacies. When her lifeless body is discovered at the foot of...

They are formidable enemies in their own rights: a French scientist, an American millionaire, a brilliant Chinese gentleman, and a master of disguise. But together they are the Big Four, a partnership with one simple goal, murder. Hercule Poirot has never come up against an opponent so vicious, or so deadly.

Poirot had been present when Jane bragged of her plan to 'get rid of' her estranged husband. Now the monstrous man was dead. And yet the great Belgian detective couldn't help feeling that he was being taken for a ride. After all, how could Jane have stabbed Lord Edgware to death in his library at exactly the same time she was seen dining with friends? And what could be her motive now that the aristocrat had finally granted her a divorce?

Lovable and unflappable Chief Inspector Wexford investigates when two local teenagers go missing, along with their thirty-something babysitter and her car.