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

Set against the backdrop of the Spanish invasion of England during the reign of Elizabeth I, The Sea Hawk is a classic of the pirate genre. Sir Oliver Tressilian is betrayed by a jealous half-brother and forced to serve as a slave on a galley. He is liberated when the ship is hijacked by Barbary pirates. Sir Oliver joins the pirates, gaining the name "Sakr-el-Bahr" (the hawk of the sea), and swears vengeance against his brother. -- from Amazon.

Thirteen-year-old Twig, having always looked and felt different from his woodtroll family, learns that he is adopted and travels out of his Deepwoods home to find the place where he belongs.

"Antonio Moro lost everything to the Leviathan League. Now he's alone in a city on an Arctic island fighting the ruthless, global pirates with the chance to be the artist he always wanted to be. Unfortunately, he thinks it's a cover story for his real purpose-spying on sympathizers. When things look bleak, he discovers an unusual ally. His new personal assistant program, Par Augustus. It's insolent, extroverted, moody, and a not-quite-legal nascent...

"An Imperial legate is called in to see his aunt, who just happens to be the empress running the civilized world while her husband's in his sick bed. After some chastisement, she dispatches her nephew to take care of the dreaded Land and Sea Raiders, pirates who've been attacking the realm's monasteries. So begins a possibly dommed tour of banished relatives and pompous royals put in charge of monasteries like Cort Doce and Cort Malestan, to name...

"A century-old treasure map of San Francisco's Barbary Coast. Sacred riches from India. Two murders, one hundred years apart. And a love triangle-- Historian Jaya Jones has her work cut out for her. 1906: Shortly before the Great San Francisco Earthquake, Pirate Vishnu strikes the San Francisco Bay. An ancestor of Jaya's who came to the U.S. from India draws a treasure map-- Present day: Over a century later, the cryptic treasure map remains undeciphered....