By Agatha Christie

From Amazon

In London after the Great War, Tommy Beresford and Tuppence Cowley are out of work and low on funds. The old friends quickly form the Young Adventurers, Ltd. Seeking to hire themselves out to “do anything, go anywhere,” the duo agree to a lucrative job: locate a survivor of the Lusitania sinking who’s disappeared with a compromising secret. Their assignment sucks them into a conspiracy of murder, kidnapping, and double identities. Behind it is an elusive, omnipresent puppet master who will stop at nothing to eliminate the amateur sleuths before they find what they’re looking for.

In Agatha Christie’s first Tommy and Tuppence mystery, the plucky pair hit the ground running in their search for excitement and adventure—“no unreasonable offer refused.”

Revised edition: Previously published as The Secret Adversary, this edition of The Secret Adversary (AmazonClassics Edition) includes editorial revisions.