Tana Winthrop has longed to travel to Earth. When she is finally able to do so using new technologies she discovers the secret of the survivors living on Earth. But in doing so, Tana has also re-ignited the threat of extinction for those very survivors.

As word of her discovery spreads, she must race against time to save the newly vibrant Earth from the emerging threat and the only way to do so is to enlist the help of a legendary hero who has been dead for over two hundred years.

This is the last book in the Coconino trilogy.