or The Old Naturalist’s Secret
In the depth of the jungle Bomba lives a life replete with thrilling situations. Once he saves the lives of two American rubber hunters who ask him who he is, and how he had come into the jungle.
2. BOMBA THE JUNGLE BOY AT THE MOVING MOUNTAIN
or The Mystery of the Caves of Fire
Bomba travels through the jungle, encountering wild beasts and hostile natives. At last he trails the old man of the burning mountain to his cave and learns more concerning himself.
3. BOMBA THE JUNGLE BOY AT THE GIANT CATARACT
or Chief Nasconora and His Captives
Among the Pilati Indians he finds some white captives, and an aged opera singer, first to give Bomba real news of his forebears.
4. BOMBA THE JUNGLE BOY ON JAGUAR ISLAND
or Adrift on the River of Mystery