The Landon family is Southbound--headed for Florida to investigate a mysterious illness plaguing endangered manatees in Everglades National Park. Jack, Ashley, and their friend Bridger soon find themselves in deadly waters with a seven-foot shark, an injured manatee--and a mystery to solve. Who was the stranger in the speedboat who snatched Jack's camera? And what does he have to do with the manatees? Join the heart-stopping chase through a maze of mangrove islands to find out!"From the Trade Paperback edition."
- ISBN10 1299571654
- ISBN13 9781299571655
- Publish Date 1 January 2011
- Publish Status Active
- Out of Print 1 April 2015
- Publish Country US
- Imprint National Geographic Society
- Format eBook
- Language English