A young boy named Bren sets out on the high seas with a mysterious admiral to search for a legendary map that leads to an object of unspeakable power--

On a mission to rescue Empress Justina's son from his pirate kidnappers, Hal and the brotherband crew set sail amid stormy seas to the island of Santorillos where they encounter a formidable obstacle, a caldera.

After the Iberians raid the harbor, stealing or destroying as many ships as they can, the Herons take the only ship that survived and race after their enemy, letting nothing stand in the way of taking down these pirates and pursuing justice.

A girl pursues her own adventures by stowing away on her father's clipper ship.

In the 1830s Owen Ward is cabin boy on the Polaris, a ship on a voyage of scientific exploration, when illness and a mutiny off the coast of Brazil cause the adult crew to abandon the ship, leaving the handful of young cabin attendants and deckhands behind. The young seafarers are determined to bring their ship to safety, but when one of them disappears they begin to suspect that there is something deadly on board with them--

Following clues left by their missing father, twelve-year-old twins Bickford and Rebecca Kidd sail from the Caribbean to New York City with their siblings to finish the dangerous quest of their world-famous treasure-hunting parents--Provided by publisher.

Hal, Stig, and the other outcasts do not have the size and strength of the Skandians, but when they face off against the Wolves and the Sharks in an ultimate race for survival, they hope that their courage and cunning are enough to help them win in a game that everyone seems to think is a matter of life and death.

When their ship, the Lost, explodes, Bick, Beck, Tommy, and Storm are stranded on a raft in the middle of the Mediterranean Sea, but the situation worsens when the treasure hunters kidnap their parents, forcing the Kidd siblings to follow clues around the globe to uncover an ancient treasure and save their family.