Tommy and Tuppence Beresford mysteries

Published in January 1922, "The Secret Adversary" is the second detective fiction novel by British crime novelist Agatha Christie. The book introduces the characters of Tommy Beresford and Prudence "Tuppence" Cowley, two out-of work twenty-somethings in post-war London. The two agree to form "The Young Adventurers, Ltd" company, hiring themselves out with the slogan "no unreasonable offer refused". They are quickly enlisted to solve the mysterious...

"It is World War II, and while the RAF struggles to keep the Luftwaffe at bay, Britain faces an even more sinister threat from 'the enemy within'--Nazis posing as ordinary citizens. With pressure mounting, the intelligence service appoints two unlikely spies, Tommy and Tuppence Beresford. Their mission: to seek out a man and a woman from among the colorful guests at Sans Souci, a seaside hotel. But this assignment is no stroll along the promenade--N...

Tommy and Tuppence Beresford return in Agatha Christie's classic Postern of Fate, to investigate a deadly poisoning sixty years after the fact.

Tommy and Tuppence Beresford have just become the proud owners of an old house in an English village. Along with the property, they have inherited some worthless bric-a-brac, including a collection of antique books. While rustling through a copy of The Black Arrow, Tuppence comes

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