No mission without risk. No victory without cost. Kena and the rest of the resistance have managed to escape the Spear, leaving their enemies stranded, for now, on Lone. They've got a plan to save the Societies, but it means journeying to all seven worlds and putting everyone Kena cares about at risk. To keep Assimilation out of Bayard's control, they'll need to meld the crystals on each planet. But first, they have to find them—no easy task. With Kena's powers growing and the Spear on their tail, members of the resistance must move quickly if they hope to save their lives—and the unique qualities that make each of them who they are. Ascension is the final installment of the YA Science-Fantasy "Societies" trilogy.