"Over the years, Dirk Pitt has always had a knack for finding trouble. This time, it has found him. The extraordinary new novel from the grand master of adventure and #1 New York Times-bestselling author. Pitt, the director of the National Underwater and Marine Agency, is on the Black Sea, helping to locate a lost Ottoman shipwreck, when he responds to an urgent Mayday - "Under attack!"--A nearby freighter. But when he and his colleague Al Giordino...

When two unlikely mice friends build a vessel capable of taking them to the bottom of the ocean, they go in search of a missing treasure, but find the truth to be far more amazing.

"To stop the world from burning, it's up to Sigma Force to uncover a secret buried at the heart of our planet. The Titan Project-an international research station off the coast of Australia-discovers a thriving zone of life in an otherwise dead sea. The area teems with a strange bioluminescent coral that defies science, yet holds great promise for the future. But the loss of a military submarine in the area triggers a brutal attack and sets in motion...

When Neil, Sam, and Biggs are captured by Captain Jolly, a pirate who needs their video-game skills to destroy the world, the Nerdy Dozen must save the day in an underwater adventure.

Deep Sea Diver, Robot, and Monkey board a submarine, the Guppy, to delve into the darkest depths to discover what has taken the light from the sea.

An anti-globalization activist learns how to artificially trigger a polar shift. He plans to use the event to jolt industrialized nations into corrective action. Unfortunately, unless NUMA Special Assignment Team can stop him, his "wake-up call" could annihilate the entire population of the world.

Readers make choices that determine the outcome of the story when, while exploring the seas for the lost continent of Atlantis, they are separated from their diving vessel.

In this story inspired by Jules Verne's "20,000 Leagues Under the Sea," Ana Dakkar, a freshman at Harding-Pencroft Academy, a five-year high school that graduates the best marine scientists, naval warriors, navigators, and underwater explorers in the world, makes astounding discoveries about her heritage and puts her leadership skills to the test against deadly enemies from a rival school.

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.

"Professor Aronnax sets off in search of a giant sea monster, only to find the monster is really a steel-plated submarine. Captured by the mysterious Captain Nemo, Aronnax witnesses the exploration of the Nautilus, the remarkable submarine Nemo has invented. But Aronnax comes to learn that Nemo is near insanity and must escape. It's an incredible journey into a mysterious world of excitement and danger!"--Page [4] of cover.