The human past isn't really about what you've been taught in school! In nineteen ninety-one, life is good in the quiet, uneventful suburb of Santa Mahara, California. Twins Declan and Dalya are eighth graders living an ordinary, routine life until one day they stumble upon a mysterious sinkhole that gives them strange powers. Then everything changes as they are thrusted into an intricate chain reaction of life-threatening adventures. On a quest to find the purpose for their powers, Declan and Dalya travel the world to mysterious ancient archaeological sites. The answers they find are shocking. Secrets of humankind's past and future are discovered; secrets so powerful that if revealed, the world would plunge into panicked chaos. Meanwhile, a secret organization seeks to capture the twins to steal their powers for its own wicked goals. To make matters worse, Declan and Dalya must decide whether or not to tell their parents about their powers, endangering their lives as well.

Will Declan and Dalya be captured? Or can the twins help save the world from a mysterious threat and keep humanity's disturbing ancient secrets hidden? Will they ever have normal lives again? If you like part 1 of this series then read the second and third books to find out what happens.