The rain starts suddenly, hard and fast. After days of downpour, her family lost, Sebah takes shelter in a tree, eating pine cones and the raw meat of animals that float by. With each passing day, her companion, a boy named Aban, grows weaker. When their tree is struck by lightning, Sebah is tempted just to die in the flames rather than succumb to a slow, watery death. Instead, she and Aban build a raft. What they find on the stormy seas is beyond imagining: a gigantic ark. But Sebah does not know what she’ll find on board, and Aban is too weak to leave their raft.