Volcano Adventure - Hal and Roger Hunt are off to the Pacific to study volcanoes with scientist Dr Dan Adams. They share amazing experiences, but Dr Adams behaves strangely, and may be endangering them all. South Sea Adventure - Hal and Roger are commissioned to bring back extraordinary sea creatures and visit remote pearl-oyster beds of a secret lagoon. Others are after the pearls too, and strand the boys on a desolate atoll.
Willard DeMille Price was born in Peterborough, Ontario, and moved to the US when he was four. He got his MA and Litt.D from Columbia. He held a special interest for natural history, ethnology and exploration and made numerous expeditions for the American Museum of Natural History and the National Geographic Society. Price also went on to edit various magazines on travel and world affairs and spent six years working in Japan as foreign correspondent for New York and London newspapers. He travelled in seventy-seven countries before his death in 1983.