Twins Bick and Beck Kidd and their family of professional treasure hunters race against mercenaries, rival treasure hunters, and a lumber baron through the jungles and mountains of Peru in search of Paititi, the legendary lost Inca city of gold, in hope of conserving the archaeological treasure and preventing deforestation of the rain forest.

It all started when my sister, Thea, discovered a mysterious map. It showed a secret treasure on a faraway island. And before I could let out a squeak of protest, Thea dragged me into her treasure hunt! In no time at all, we'd set sail for the island. It was an adventure I'd never forget....

"Amelia Bedelia heads to a pirate-obsessed beach town, and just when she thinks she's uncovered all of the town's secrets, she literally falls right into buried treasure"--

"After saving the world, Charlie is ready to take it easy in the Galapagos Islands. That is, until she's approached by the mysterious Esmeralda Castle, who has a code she knows only Charlie can decipher. In 1835, Charles Darwin diverted his ship's journey so he could spend ten months in South America on a secret solo expedition. When he returned, he carried a treasure that inspired both awe and terror in his crew. Afterward, it vanished, never to...

In 1806, star-crossed lovers Jacky Faber and Jaimy Fletcher are kidnapped by British Naval Intelligence and forced to embark on yet another daring mission--this time to search for sunken Spanish gold off the Florida coast.

"When her parents, the great marine scientists Dr. and Dr. Quail, are killed in a tragic accident, eleven-year-old Fidelia Quail is racked by grief - and guilt. It was a submarine of Fidelia's invention that her parents were in when they died, and it was she who pressed them to stay out longer when the raging Undertow was looming. But Fidelia is forced out of her mourning when she's kidnapped by Merrick the Monstrous, a pirate whose list of treasons...

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

"What if you woke up one day and discovered that the maps of the world were all wrong? Famed Explorer of the Realm Alexander West is presumed dead in the Fazian rainforest when a mysterious man with a clockwork hand leads Alexander's son Kit to half of a strange map. Soon Kit, his brother Zander, and his sister, M.K., are on their way to a remote canyon in the Arizona desert, pursued by government agents and on the trail of a fabled treasure in gold....

When the Alden children go camping on Blizzard Mountain, a place said to be inhabited by a ghost looking for buried treasure, they begin to think someone or something is trying to scare them off.

"It was only a few weeks ago that the Biedermann twins, Tess and Theo, along with their friend Jaime Cruz, followed the secrets of the Morningstarrs' cipher further than anyone had in its century-and-a-half history --and destroyed their beloved home in the process. But the Old York Cipher still isn't solved. The demolition of 354 W. 73rd Street only revealed the next clue in the greatest mystery of the modern world, and if Tess, Theo, and Jaime want...