A missing girl, a secret document, and a shadowy enemy who will kill to stay hidden-Tommy and Tuppence have just walked into the most dangerous adventure of their lives.
What begins as a simple business scheme quickly turns into a high-stakes race against a ruthless mastermind known only as Mr. Brown. With political power hanging in the balance, the spirited young duo plunge into a world of spies, disguises, coded messages, and deadly traps.

Praised as "a fast, witty thriller with irresistible charm," this novel introduces two of Christie's most beloved characters-bold, clever, and wonderfully unpredictable. Their chemistry, humor, and daring make the mystery as entertaining as it is suspenseful.

Perfect for readers who love thrilling twists, energetic characters, and espionage-style intrigue, this story keeps the tension high until the final shocking reveal.

Dive into the mystery now-and join Tommy and Tuppence as they chase the adversary no one else can catch.