A few weeks ago, Letty was a typical girl. She was popular, pretty, and her biggest concern was her reputation at school. But after being kidnapped, brainwashed, and finally rescued by Andy-the boy she once tormented-she has discovered the truth: she, Andy, and many like them are Seers, members of an ancient line, destined to defend humanity from the ryle.Now Andy needs her help. While Letty and her Caspian allies escape to the safety of the surface, Andy becomes prisoner to Ziesqe the Just, a ryle determined to use Andy to evade death and betray his race. With Andy in his clutches, and stalked by a ryle hunter tasked with retribution, Ziesqe races to achieve his ambition before Andy slips his chains, or his own blood is spilled.Letty has uncovered her power, and she must lead her friends back to the Netherscape-an underworld teeming with colossal insects and precocious mice-to save the boy who saved her.