From the Hugo Award­–winning author of Folding Beijing comes a gripping science fiction thriller in which three unlikely allies attempt a desperate mission of first contact with a mysterious alien race before more militaristic minds can take matters into their own hands.

In a future where the world is roughly divided into two factions, the Pacific League of Nations and the Atlantic Division of Nations, tensions are high as each side waits for the other to make a move. But neither side is prepared for a powerful third party that has apparently been an influential presence on Earth for thousands of years—and just might be making a reappearance very soon.

With the realization that a highly intelligent alien race has been trying to send them messages, three rising scientists within the Pacific League of Nations form an uneasy alliance. Fueled by a curiosity to have their questions answered and a fear that other factions within their rival Atlantic Division of Nations would opt for a more aggressive and potentially disastrous military response, the three race to secure first contact with this extraterrestrial life they aren’t quite convinced is a threat.

Bolstered by recent evidence of alien visitations in the distant past, the three scientific minds must solve puzzles rooted within human antiquity, face off with their personal demons, and discover truths of the universe.