Caliban's War is the second book in the Expanse series by James S.A. Corey. In this thrilling installment, tensions between Earth, Mars, and the Belt escalate as a new alien threat emerges. The story follows the crew of the Rocinante as they navigate the dangerous political landscape and try to prevent an all-out war. With its complex characters, intricate world-building, and pulse-pounding action, Caliban's War delivers a gripping space mystery that will leave readers eagerly reaching for the next book in the series.