'He left them there to die...' Hal and Roger Hunt dive straight into danger on a specimen-collecting trip to Undersea City. But it's not just sharks and killer whales the brothers have to fear when they are plunged into the depths of another adventure.

 

This book has been graded for interest at 9-11 years.

There are 288 pages in this book. This book was published 2013 by Random House Children's Publishers UK .

Willard Price was born in 1887 in Peterborough, Ontario. He had a great interest in natural history, ethnology and exploration and made numerous expeditions for the American Museum of Natural History and the National Geographic Society. He 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.