An antique store, a Treasure Room, some musty old scrolls, and a passage through time. Summers at Grandpa's are spent checking, shelving, and inventorying dusty relics. Abi and her cousin Lewis devote hours to the task in what Grandpa calls the Treasure Room of his antique store. There he keeps his most prized antiques. Abi wonders how Grandpa gets the antiques for his Treasure Room since they seem to just appear overnight on the door steps of the store. Some old clay jars show up one day and Abi and Lewis discover a hidden treasure inside. Archaic scrolls with the power to carry you to back to points in Biblical history! After reading an inscription from one of the scrolls, Abi and Lewis find themselves in ancient Egypt during the time of Moses and the Pharaohs. The scroll holds the key to how they'll make it home again. But first, they must live through the Ten Plagues of Egypt.