N or M?: Collins Agatha Christie ELT Readers

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Set during World War II, Agatha Christie’s riveting novel in her Tommy and Tuppence series follows the unlikely espionage agents as they pursue a pair of Nazi spies who have murdered Britain’s top agent.
World War II is raging, and while the RAF struggles to keep the Luftwaffe at bay, Britain faces a sinister threat from “the enemy within”—Nazis posing as ordinary citizens.
With pressure mounting, the intelligence service appoints two improbable spies, Tommy and Tuppence Beresfordac. 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 far from an easy stroll along the promenade—N and M have just murdered Britain’s finest agent and no one can be trusted.
“Any mystery writer who wants to learn how to plot should spend a few days reading Agatha Christie.”—Donna Leon, internationally bestselling author of the Commissario Guido Brunetti novels

Praise for Agatha Christie: “Agatha Christie proves that if you really are good enough, you can break all the ‘rules’ and still come up with a winner.” — Anne Perry, New York Times bestselling author of the Thomas Pitt and William Monk series of Victorian mysteries
“As ingenious as ever.” — The Guardian