Mateo is determined to rescue his brother Lucas from the shadow world, where he has been trapped for quite some time. In his way, however, stands the nefarious Grandfather Twilight, who is eager to unleash his vengeance on the members of the Resistance who have thwarted his evil schemes thus far. Will he finally crush the dissidents? A pulse-pounding tale filled with adventure and horror, this book will engross young readers.Mateo está decidido a rescatar a su hermano Lucas del mundo oscuro donde ha estado atrapado desde hace tiempo. Sin embargo, obstruyéndole el paso está el nefario abuelo Penumbras, quien prepara su gran venganza contra los miembros de la Resistencia quienes han frustrado sus malignos planes hasta ahora. ¿Podrá por fin vencer a los disidentes? Un cuento trepidante lleno de aventura y horror, este libro absorberá a los jóvenes lectores.