Hailed as a hero for the new millennium, NUMA leader Kurt Austin must protect the seas’ delicate ecosystem from a fish-farming organization with big plans for their genetically-modified product in this #1 New York Times-bestselling adventure series.

A confrontation between a radical environmentalist group and a Danish cruiser leave many survivors trapped inside a sunken ship. But when the head of NUMA Special Assignments,

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Text, pictures and overlays provide information on exploration in the deep parts of the oceans, looking not only at sea creatures, but also archaeology and recovery of lost ships.

When the Octonauts, a team of eight animal underwater explorers, meet a frowning fish, they try their best to make it smile.

When the Octonauts, a team of eight animals who explore the ocean, help a lonely monster, everyone learns the value of friendship and individuality.

"A biographical account of engineer Otis Barton and naturalist Will Beebe's record-setting descent into the deep ocean in their Bathysphere craft, making the men the first humans to witness deep sea creatures in their natural habitat"--

Describes the voyage of the Titanic, the accident that caused it to sink, the rescue of those who survived, and the 1986 expedition to find the sunken ship.

On the night of April 14, 1912, as it made its first voyage, the luxury steamship Titanic struck an iceberg. Then, a few hours after midnight on April 15, the ship sank thousands of feet before settling on the ocean floor. And that s where it stayed, whereabouts unknown, for the next 73 years until it was discovered by oceanographer Robert Ballard and his crew. The pictures and video Ballard brought back from the 1985 discovery helped stir new interest...

When the Octonauts, a team of eight animals who explore the ocean, discover a bleached and abandoned coral reef, they learn about the important relationships among animals, plants, and their habitats.

The Krewe of Hunters must find an ancient shipwreck and save divers from the demons aboard, in book 7 of the fan favorite series from New York Times bestselling author Heather Graham. It is 1898. Bound for Chicago, the freighter Jerry McGuen goes down in Lake Michigan, taking with it every man aboard. But what other fate could befall a vessel carrying the ill-gotten sarcophagus of an Egyptian sorcerer? Now: A veteran diver and "ghost ship" expert...

"An international research station in the Coral Sea comes under siege during a geological disaster that triggers massive quakes, deadly tsunamis, and volcanic eruptions. To stop the world from burning, it's up to Sigma Force to uncover a secret buried at the heart of our planet"--