The Secret Adversary

The story follows childhood friends Tommy Beresford and Prudence "Tuppence" Cowley as they embark on a thrilling adventure after deciding to start their own business, The Young Adventurers. Their first case quickly spirals into a web of international intrigue and danger, involving murder and suspense. Along the way, they encounter various allies, including an American millionaire searching for his cousin, as they navigate perilous situations in their quest to solve the mystery.