Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle. Morgan le Fay will make Jack and Annie masters of the tree house if only they can solve four riddles -- which will take four books, of course! Dolphins at Daybreak begins the third set of four books in this magical (and increasingly popular) series! Jack and Annie are off in the Magic...

The H.M.S. Unseen is one of the most efficient, lethal submarines ever built. But suddenly, on a training mission off the English coast, it vanishes, baffling military intelligence on both sides of the Atlantic, including National Security Adviser Admiral Arnold Morgan. A missing weapon is dangerous enough. But then the unthinkable begins to happen... Planes begin blowing up across the skies.

Searching for answers, Morgan is convinced

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It's one of the stealthiest, most dangerous underwater warships ever built—and it's about to set off World War III.

Silent at less than five knots and capable of a massive nuclear warhead punch, it's the 240-foot Russian Kilo Class submarine. Strapped for hard cash, the Russians have produced ten new Kilos for Beijing. The Chinese have already received three of the subs and now the last seven are ready to be delivered—a code-red

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Wolfie, a lone wolf who does not like using her imagination, reluctantly befriends Fly, a slightly weird and wordy boy, and soon they find themselves navigating through deep water in a submarine made from a cardboard box.

"Juan Cabrillo and the crew of the Oregon are back with a new adventure in this thrilling suspense novel in Clive Cussler's #1 New York Times bestselling series"-- When the CIA realizes the identities of three American spies in Brazil have been compromised, they turn to Juan Cabrillo and the crew of the Oregon to rescue the agents. What seems a routine operation turns out to be a trap designed by Juan Cabrillo's greatest enemy, a man driven by hate...

In this classic adventure novel, first published in 1873, Phileas Fogg of London and his newly employed French valet Passepartout attempt to circumnavigate the world in 80 days on a ?20,000 wager set by his friends at the Reform Club - and he is determined not to lose. Breaking the well-established routine of his daily life, the reserved Englishman and his manservant immediately set off.

Aboard the Abraham Lincoln, an American frigate, French oceanographer Pierre Aronnax and his unflappable assistant Conseil assist crew on an expedition in search of a ship-destroying monster. A sudden collision hurls Aronnax, Conseil, and one other crew member into the sea. They find safety on the very menace they had been hunting, which they discover is the futuristic submarine the Nautilus piloted by the enigmatic Captain Nemo-inventor, musician,...

"A direct descendant of a legendary English privateer, Lord Alexander Hawke is one of England's most decorated naval heroes. Now, in the Caribbean on a secret assignment for the American government, Hawke must disarm a ticking time bomb--a highly experimental stealth submarine carrying forty nuclear warheads that has fallen into the hands of an unstable government just ninety miles from the U.S. mainland. But Hawke's mission is twofold, for he has...

Espionage and the theft of military technology have enabled the Chinese to build a fleet of powerful warships. When the submarine "Seawolf" falls to enemy hands, the power balance shifts.

If, like Kane, you're a Denied Access Area spy for the CIA, then boundaries have no meaning. Your function is to go in, do whatever is required, and get out again - by whatever means necessary. You know when to run, when to hide - and when to shoot. But some places don't play by the rules. Some places are too dangerous, even for a man of Kane's experience. The badlands where the borders of Pakistan, Iran and Afghanistan meet are such a place - a place...