The Secret Adversary is a novel written by the renowned British author Agatha Christie. The book is a classic mystery novel that was first published in 1922. The story follows the adventures of two young friends, Tommy and Tuppence, who are trying to make their way in post-World War I England. They decide to become detectives and take on a case of finding a missing woman, Jane Finn, who disappeared on the Lusitania. The plot is full of twists and turns as Tommy and Tuppence get caught up in a web of intrigue and espionage. They are pursued by a mysterious figure known only as Mr. Brown, who seems to be behind the disappearance of Jane Finn. Along the way, they encounter a host of colorful characters, including a wealthy American, a Russian dancer, and a shady businessman.As they delve deeper into the case, Tommy and Tuppence find themselves in grave danger, as Mr. Brown will stop at nothing to keep them from uncovering the truth. The book is filled with suspense, action, and humor, making it a classic of the mystery genre. Overall, The Secret Adversary is a thrilling and entertaining read that will keep readers on the edge of their seats until the very end. It is a must-read for fans of Agatha Christie and anyone who loves a good mystery.The two young people greeted each other affectionately, and momentarily blocked the Dover Street Tube exit in doing so. The adjective ""old"" was misleading. Their united ages would certainly not have totalled forty-five.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.