ISBN-13: 9781542738101 / Angielski / Miękka / 2017 / 236 str.
ISBN-13: 9781542738101 / Angielski / Miękka / 2017 / 236 str.
Published in 1915, this novel tells the story of more than 5,000 German, Swiss, Belgian and French spies operating in Great Britain during World war I alongside the German Secret Police. This spying activity aims to transfer the secrets of Britain's armament, defences and newest inventions to its enemies.