While visiting his grandmother on Cape Cod, nine-year-old Thomas encounters a ship's cabin boy from centuries past.

Jim, the quayside cat, having heard many tales of life at sea from Old Tregarn, persuades the former ship's cat to join him on a voyage of his own.

"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"-- Provided by publisher....

"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.

Catching a baby in his hat sets off a series of adventures for a young nineteenth-century English boy as he becomes a sea captain and finds a surprising mate.

Lintang's dream of adventure on the high seas comes true when Captain Shafira invites her to join her pirate crew, but Lintang's best friend, Bayani, has stowed away and is keeping secrets.

Pug is going on a seafaring adventure. He's had jam tarts for breakfast. He's wearing a smart sailor suit. There's just one problem: Pug is afraid of the water! When he falls asleep in a picnic basket, he gets separated from his best friend, Lady Miranda. To find his way home, Pug will have to face his greatest fear.

Xiang and Anh--ages sixteen and seventeen--hunt the South China Sea for the lost treasure of the fabled pirate queen Zheng Yi Sao.

Trim looks for a way to help his crewmates without much success, but when he discovers a big problem on the ship, it is all hands on deck.

When the Imagination Station sends time-traveling cousins Patrick and Beth to a ship that is captured by the British during the Revolutionary War, they are befriended by James Forten, a free Black of Philadelphia, and help save the life of an imprisoned boy dying of scurvy. Includes a secret word puzzle.