Nancy arrives in Phoenix, Arizona, eagerly looking forward to a fun-filled vacation at Shadow Ranch but finds herself embroiled in a baffling mystery involving a phantom horse and buried treasure. Local people believe that the ghostly animal is carrying out the curse of Dirk Valentine, the romantic outlaw who was killed many years ago at Shadow Ranch, where he had gone to fulfill a promise to his sweetheart. Suspecting that a treasure hidden by Valentine...

The Redwallers face some of their most dangerous villains yet in a treacherous hunt for long-lost treasure.

A pirate Pete and his mates travel the sea in search of a buried treasure, encountering a musician sea monster along the way.

Tory Brennan and her Virals friends work to prevent the financially strapped Loggerhead Island Research Institute's imminent shutdown, an effort that leads them to investigate an old Charleston buried treasure legend.

Thirteen-year-old Trixie Belden and her friends search for hidden treasure in a mysterious mansion owned by an old miser.

When the ghost of Lara's great-aunt Sadie--a feisty, demanding girl with firm ideas about fashion, love, and the right way to dance--mysteriously appears, she has one last request: Lara must find a missing necklace that had been in Sadie's possession for more than seventy-five years. Never mind that Lara has her own problems--which Sadie could care less about. Will this sparring duo ever find what they're after?

"My father's ships will be at the sirens' mercy. We will be the ones to reach the island first and claim its treasure for ourselves. Alosa's mission is finally complete. Not only has she recovered all three pieces of the map to a legendary hidden treasure, but the pirates who originally took her captive are now prisoners on her ship. Riden, still unfairly attractive, is a constant distraction, but at least he's under her orders this time. But when...

While in the Bahamas with Doc Ford, who is investigating invasive lionfish, Maribel, Luke, and Sabina find precious artifacts but outlaws learn of their find and come after them.

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.

"The Kidd children--including twelve-year-old twins Rebecca and Bickford--follow mysterious clues that take them from China to Germany, in the hopes of finding their missing father and the treasure that will finally free their kidnapped mother"--