Intelligent, adventuresome, and a natural-born leader, Luka is tired of working in the Lime pit in his home of Yukitet. It doesn’t take much to convince his friend to join him on a trip to explore the relatively unknown Southern Plains of Ixtlán. But will the strangers that join in their travels—and a rapidly shifting world—upend everything they thought they knew? Zida, the sole survivor after a cataclysmic volcano blast destroys her entire village, is rescued by Luka and his motley band of travelers from distant lands. With no supplies, facing an onslaught of disasters, can their courage and resourcefulness guide them to a safe haven? But safety is a relative concept as old conflicts and rivalries rear their ugly heads. Then the ground splits open beneath their feet. Trapped alone in the darkness and silence of an underground cave, can Luka and Zida survive long enough to discover why the green stars fade?