The third book in the NYT bestselling Expanse series, Abaddon's Gate opens the door to the ruins of an alien gate network, and the crew of the Rocinante may hold the key to unlocking its secrets. Now a Prime Original series. HUGO AWARD WINNER FOR BEST SERIES For generations, the solar system -- Mars, the Moon, the Asteroid Belt -- was humanity's great frontier. Until now. The alien artifact working...