In a world where the boundary between reality and fantasy fades in unimaginable ways, two brothers, Alecksander and Perccyval, embark on an epic adventure into the depths of Agatha, an ancient city hidden underground. Their mission is to rescue their two sisters, Margaret and the little Chelsea, who have been previously kidnapped, while facing all sorts of adversities that test their courage and fraternal bond. The quest takes them through landscapes that defy imagination, with societies composed of beings who border on the limit of eternal life, and whose gifts are as vast as the mysteries of the world that surrounds them.