After tracking down incredible discoveries by Einstein and Darwin, Charlie is back. This time, the great ruler Cleopatra has left behind an extremely valuable and powerful treasure, its location encoded on an ancient stone tablet. In 30 BCE, Cleopatra and her husband, Marc Antony, lost their war against Octavian for control of the Egyptian Empire. However, Cleopatra knew Octavian was really after the mysterious item that was the source of all her...

Constable Hamish MacBeth heads for the village of Stoyre to investigate why its citizens are leaving in droves and encounters a series of baffling events, dangers, and mysteries.

To stave off the anxiety plaguing her, Cora counts the minutes that fill her day and searches for a lost treasure near her home in California, but the sudden arrival of her long-lost uncle threatens to upend her carefully-constructed existence.

Lucas has just lost his father in Afghanistan and to help him cope, his grandmother sends him to Camp Kawani. While there, he learns of the lost treasure of Thomas Jefferson Beale, a local legend of a hoard of gold buried in the mountains 200-years ago. The location is encrypted in a set of codes no one has ever been able to decipher. Lucas becomes obsessed with finding the gold to save his home and leads his newfound friends into a dangerous mission...

Sukie braves the twists and turns of the spooky Poe Annex at the New-York Circulating Material Repository to untangle ancient family secrets, find hidden treasure, and help the ghosts who are haunting her house.

"Set against the turbulent years of the Napoleonic era. Alexandre Dumas's thrilling adventure story is one of the most widely read romantic novels of all time. In it the dashing young hero, Edmond Dantès, is betrayed by his enemies and thrown into a secret dungeon in the Château d'If--doomed to spend his life in a dank prison cell. The story of his long, intolerable years in captivity, his miraculous escape, and his carefully wrought revenge creates...

When the Hardy boys eagerly agree to assist their friend Jack Dodd and his father in locating a family treasure, the two young detectives are unaware of the baffling complications that will arise. The only clue to the long-lost treasure is a cryptic message written by a Pilgrim ancestor. But when Mr. Dodd and Jack are accused of stealing cars and then mysteriously disappear, Frank and Joe are confronted with a triple mystery. Have their friends run...

Twelve-year old orphan Emma Casey lives by a haunted graveyard in her Tennessee town, giving tours, and helping her brother and Granny Blue with the family bakery, and waiting for the destiny dream of her ancestors--but when it comes it shows her only a key, and she finds that she must solve a ghostly mystery that has haunted her town for generations.

It is Bub the pug's first trip to the beach, and Bella wants to enter him in a pet-surfing contest, but Bub is scared of the ocean and refuses, so he hopes to make it up to Bella by presenting her with the treasure at the end of the map he found.

"Charlie Thorne must search for Charles Darwin's hidden treasure in South America--with plenty of enemies hot on her trail"--