Studious language expert Becca suffers from mysterious blackouts that allow her to see the time of Copernicus, where she receives coded messages about a relic.

When shoelace heir Neddie Wentworthstein and his family take the train from Chicago to Los Angeles in the 1940s, he winds up in possession of a valuable Indian turtle artifact whose owner is supposed to be able to prevent the impending destruction of the world, but he is not sure exactly how.

Scholarly eighteen-year-old Paula and her merchant father journey from Transylvania to Istanbul to buy an ancient pagan artifact rumored to be charmed; but others, including a handsome Portuguese pirate and an envoy from the magical Wildwood, want to acquire the item as well.

Connecticut middle-schooler Jake and his older sister Kady are transported by a Mayan artifact to a strange world inhabited by a mix of people from long-lost civilizations who are threatened by prehistoric creatures and an evil alchemist, the Skull King.

"It's been two months since the Kaplan family hunted down the Serpens relic, but when the evil Galina Krause suddenly and violently reappears, Wade, Darrell, Lily, and Becca have no choice but to face her again. Now they must race to find an artifact said to be crafted by Leonardo da Vinci himself-perhaps the strangest Guardian of all. Along the way, they uncover another layer to Galina's sinister endgame...and there might not be enough time to stop...

Twins Nathan and Aria use the tunnels under the stage in their church's cultural hall to travel back to ancient Egypt and witness the exodus of Israel led by Moses.

In an effort to stop the Sphinx from opening the demon prison Zzyxx, Kendra, Seth, and the Knights of the Dawn race to find the exotic artifacts and keep them out of the Sphinx's control.

"While exploring deep in the jungle, Jack Jones, his sister Emma and best buddy Albert uncover a hidden temple inside a cave that has been lost for centuries. To learn its secrets, they’ll have to cross piranha-filled rivers, creep past an ancient crypt, resolve a slithery situation, and find their way through a temple maze. But as the cave starts to crumble around them, will they track down the ancient Book of the Gods and figure out a way to leave...

Provides an illustrated account of how four boys, Jacques, Jojo, Simon, and Marcel, discovered the ancient paintings in the cave of Lascaux in the south of France in 1940 while searching for treasure.

Alex and Ren must confront the Death Walkers, The Order, and an army of the dead in an attempt to save themselves, Alex's mother, and the world--and hope that Ammit, the Devourer of Egyptian legend, will be able to separate the guilty from the innocent.