The magic treehouse whisks Jack and Annie back to the days of deserted islands, secret maps, hidden gold, and nasty pirates.

"The only life Tress has known on her island home in an emerald-green ocean has been a simple one, with the simple pleasures of collecting cups brought by sailors from faraway lands and listening to stories told by her friend Charlie. But when his father takes him on a voyage to find a bride and disaster strikes, Tress must stow away on a ship and seek the Sorceress of the deadly Midnight Sea. Amid the spore oceans where pirates abound, can Tress...

Hal and the other Herons were charged with protecting the Skandian's sacred artifact, the Andomal, but when it is stolen they have to endure storms at sea, a cold winter, and a battle with bandits in their efforts to recover the relic.

Matt, a young cabin boy aboard an airship, and Kate, a wealthy young girl traveling with her chaperone, team up to search for the existence of mysterious winged creatures reportedly living hundreds of feet above the Earth's surface.

"When Shek Yeung sees a Portuguese sailor slay her husband, a feared pirate, she knows she must act swiftly or die. Instead of mourning, Shek Yeung launches a new plan: immediately marrying her husband's second-in-command, and agreeing to bear him a son and heir, in order to retain power over her half of the fleet. But as Shek Yeung vies for control over the army she knows she was born to lead, larger threats loom. The Chinese Emperor has charged...

Matt Cruse, a student at the Airship Academy, and Kate de Vries, a young heiress, team up with a gypsy and a daring captain, to find a long-lost airship, rumored to carry a treasure beyond imagination.

The Caribbean, 1665. Pirate captain Charles Hunter, with backing from a powerful ally, assembles a crew of ruffians to take the Spanish galleon, "El Trinidad," guarded by the bloodthirsty Cazalla, a favorite commander of the Spanish king himself.

A yacht bearing a young American couple is attacked by Somali pirates, leading to bloodshed and the violent kidnapping of the pregnant woman on board. To aid in her rescue from the lawless and war-torn jungles of coastal Africa, Sigma Force enlists the aid of a unique search team.

Everyone is after Arthur Penhaligon including strange pirates, shadowy creatures, and Drowned Wednesday, whose gluttony threatens both her world and Arthur's.

"Young Jim Hawkins and his friends set sail for Treasure Island, hoping to find the buried loot of Captin Flint, fiercest of all the pirates. But, unknown to them, the crew of their own ship is made up of Flint's former crew, led by the evil one-legged pirate Long John Silver. Once on the island Jim and his friends must find the buried treasure and escape before the pirates capture them. Robert Louis Stevenson's timeless tale of greed and gold remains...