The secret explorers jump into action to save a pod of humpback whales, but when Connor and Roshni's submarine malfunctions, the explorers could be the ones in trouble.

Seventh-grader Gabriel Nemo, the famous Captain Nemo's descendant, and his friends Peter and Misty save sinking ships, face mutant sea creatures, and more while eluding the Navy and Peter and Misty's parents.

Purports to be the journal of Zoticus de Lesseps, written on an ill-fated 1863 voyage accompanying Captain Nemo to explore the mysteries of the deep sea.

Ty discovers an entire township chained to a sunken submarine, its inhabitants condemned to an icy underwater grave. It's only the first clue to a mystery that has claimed hundreds of lives and stands to claim two more -- - lives very precious to Ty and his Topsider ally, Gemma.

As his family struggles with his mother's illness and a foreclosure, Max finds his great-great-great-grandfather Jules Vernes unpublished manuscript and embarks on a submarine adventure to save the story from falling into the wrong hands.

The abridged adventures of a French professor and his two companions as they sail above and below the world's oceans as prisoners on the fabulous electric submarine of the deranged Captain Nemo.

Tom, Bud, and Yo are on the S.S. Nestor, a Swift Enterprises research vessel, to witness Mr. Swift testing his submersible, the Verne-1. Mr. Swift plans to use the Verne-1 to place a network of seismometers on the sea floor to detect underwater earthquakes, volcanic eruptions, and other phenomena that might generate tidal waves on the ocean's surface. But when an unexpected storm hits and the S.S. Nestor looses contact with the Verne-1, it's up to...

"A German submarine has torpedoed the steamship Maiden! The damaged ship is an iron island in the sea. The Oliver family arrives to repair the vessel. When the Germans return to sink the ship, they capture Samuel's father and uncle. Can Samuel rescue his family?"--Back cover.

When deep-sea mining for gold and silver in the Pacific Ocean triggers a series of earthquakes, threatening a nearby island, Benji Franklin is called upon to use his amazing problem solving skills--and personal submarine--to stop the shaking and save the island's people from disaster.

Bitty Bot is initially unhappy while on vacation at the beach with his family until he makes two new friends and they build a submarine, setting off for adventure under the ocean.