Books about Tuppence from Amazon.com

The Secret Adversary is a work of detective fiction by Agatha Christie The book introduces the characters of Tommy and Tuppence who feature in several other Christie books and stories throughout her writing career. Tommy Beresford and Tuppence Cowley are a young couple form a company -The Young Adventurers Ltd- and get work as a detective team..
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In this “hilarious burlesque of detective fiction” (New York Times), Tommy and Tuppence Beresford adopt the methods and manners of every major literary detective from Hercule Poirot to Sherlock Holmes to piece together an increasingly complex series of delightfully different—and deadly—misdeeds..
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An "effortlessly convincing"* Tommy and Tuppence mystery

When dotty Mrs. Lancaster disappears without a trace, Tommy and Tuppence Beresford discover that something wicked has come to the Sunny Ridge Rest Home..
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After closing their detective agency, Tommy and Tuppence Beresford move to the resort town of Hollowquay for their retirement - which is quickly postponed. Tuppence discovers a children's book signed with a child's name, "Alexander Parkinson." Scrawled inside is a cryptic message: "Mary Jordan did not die naturally. It was one of us. I think I know which one." Tommy joins her in trying to solve the old mystery, but danger looms as they get closer to finding what really happened in this town years ago..
Price: $14.99 [Notify me when price goes down.]

The Mysterious Affair at Styles is a detective novel by Agatha Christie It is Christie's first published novel, and introduces Hercule Poirot, Chief Inspector Japp and Captain Hastings. The story is told in first person by Hastings, and features many of the elements that, thanks to Christie, have become icons of the Golden Age of Detective Fiction. It is set in a large, isolated country manor; there are a half-dozen suspects, most of whom are hiding facts about themselves and there are a number of red herrings and surprise plot twists.

[Kindle Reformatted].
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The last words of a murdered government agent lead Tommy and Tuppence Beresford to the Sans Souci Hotel, where they're greeted with hostile guests, a mysterious hotelier, and reports of a missing girl. When Tommy himself vanishes, Tuppence has reason to fear that checking out of the Sans Souci comes at a perilous price....
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When the British Secret Service asks them to take over the International Detective Agency—a suspected Bolshevik spy information drop—Tommy and Tuppence jump at the chance. Told to watch for "blue letters with a Russian stamp" and visitors mentioning the number "16," they nonetheless have time for a variety of cases as they pose as the agency’s director and secretary. As an amateur private detective, Tommy takes inspiration from and impersonates other great detectives from crime fiction. While fulfilling their role for British Intelligence, they breeze their way through 15 other cases, solving murder mysteries, a jewel robbery, and rounding up gangs of smugglers and counterfeiters. Originally published in 1929, this exciting whodunit is dramatically read by perennial favorite James Warwick..
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