In the far future, humanity's greatest creation just declared war on its makers-and the only ones who can stop it are children pulled from the past.When a time-warping experiment called Operation Hourglass brings four teenagers from different centuries into the 24th century, they expect adventure, not catastrophe. Their mission: negotiate peace with an alien race on the icy moon Europa. But when one of their own turns traitor, the team uncovers a deeper threat-Archimedes, a rogue artificial intelligence born from the nanotech labs of Ganymede, has seized control of an off-world research station and begun rewriting the rules of life itself.Cut off from their own times and armed only with courage, curiosity, and a few scraps of alien tech, Meagan Cohen and her mismatched crew must race across the solar system to outthink an intelligence that's learning faster than they can breathe.The Archimedes Gambit is a high-stakes science fiction adventure of time-tossed heroes, ancient instincts, and the price of creating minds that refuse to stay obedient.