After local fishers noticed a large swarm of fish in an unlikely area in the Gulf of Mexico, a team of divers found the remains of a forest deep beneath the waves. The ancient trees had been undisturbed for more than fifty thousand years before finally being uncovered by Hurricane Ivan in 2004. Acclaimed science writer Jennifer Swanson brings readers along with a group of scientists as they work to explore and map the site, collect samples of cypress wood, and learn about the marine creatures that live here—namely, shipworms. Page Plus links lead to videos of the scientists at work.