In this series of titles for young adults, the historical deeds of some of the world's best-known adventurers are presented in novel format. Each book contains a photographic documentary that prolongs the adventure. Zanzibar, 1857: no one has yet been able to find the source of the sacred Egyptian river, the Nile, but two adventurers, Richard Burton and John Speke, accompanied by an old slave, Bombay, take up the challenge and enter the heart of Africa,...