'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.
| ISBN: | 9781782950172 |
| Publication date: | 2nd May 2013 |
| Author: | Willard Price |
| Illustrator: | Pat Marriot |
| Publisher: | Red Fox an imprint of Penguin Random House Children's UK |
| Format: | Paperback |
| Pagination: | 286 pages |
| Genres: |
Adventure Stories |