Sixteen-year-old Raffi, Master Galen, and a mysterious traveler, Carys, enter the ruined city of Tasceron seeking a relic that may save the world, while evading the Watch, a brutal organization opposed to the Order to which Raffi and Galen belong.

As Wade, Darrell, Lily, and Becca continue their search for an ancient relic, Wade's mother is kidnapped by Galina Krause, leader of the present-day Teutonic Knights.

Ten-year-old Flavia and her friends encounter the Roman admiral Pliny before making a journey to her uncle's farm near Mt. Vesuvius, where they try to solve a riddle, reunite a family, and get out of the path of a natural disaster.

"In this high-interest accessible novel for middle readers, teen sleuths Sam and Annabel solve a mystery in the Arctic that has ties to the Franklin Expedition."-- "Sam and Annabel are excited to be on a cruise that will pass a site connected to the most famous mystery in Arctic history, the Franklin Expedition. But soon they realize there's more to the cruise than they ever imagined, and they find themselves trying to save a priceless artifact."--...

Cass and her brother Wilbur scavenge in the ruins of a future London seeking an artifact for their Russian masters, but the search takes on a new urgency after the arrival of Erin and Peyto, strangers from afar who claim to hold the key to locating the mysterious object.

"A trip to a museum to learn about Ancient Egypt turns into a new case for the Code Busters when they discover that someone may be stealing artifacts and replacing them with cunning forgeries"--

Their quest to find a secret relic with great power leads Master Galen and his sixteen-year-old apprentice Raffi into the Pit of Maar and the deep evil world at the heart of the Watch.

Agatha Mistery, a twelve-year-old detective with a photographic memory, travels to Egypt, where rumors of a mysterious tablet unearthed in the Valley of the Kings may be just the clue that she needs to unlock the secret curse of an ancient pharaoh.

Sixteen-year-old Raffi and Master Galen continue to evade the Watch as they seek the Coronet, a potent ancient relic that could be their only hope for defeating the power that is destroying Anara.

While working for a traveling disco show accompanying the King Tut exhibition in 1977, fourteen-year-old Zeke investigates a series of mishaps involving the cast and crew, mysterious messages, centuries-old artifacts, and an ancient curse.