(From the publisher):
Where is Jane Finn?
The mere mention of her name produced a very strange reaction all over London. So strange, in fact, that Tommy and Tuppence decided to find this mysterious missing lady. And once those two determined sleuths made up their minds, nothing could stop them -- not international espionage, kidnapping... or even murder.
Original title: The Secret Adversary
Genre: Fiction→ Crime and Mystery→ Detective Story and Detectives