The Riddle of the Sands

A thriller first published in 1903, from the author of THE SHADOW IN THE SANDS. Bored with work at the Foreign Office, a young man accepts his friend's invitation to go on a sailing holiday in the Baltic. However, he quickly discovers that the real purpose of the trip is espionage, as they both struggle to prevent a German invasion.
 
A thriller first published in 1903, from the author of THE SHADOW IN THE SANDS. Bored with work at the Foreign Office, a young man accepts his friend's invitation to go on a sailing holiday in the Baltic. However, he quickly discovers that the real purpose of the trip is espionage, as they both struggle to prevent a German invasion.