Before he led the Argonauts on the quest for the Golden Fleece, Jason saved an ancient city . . . Jason is an orphan training to be a warrior under the instruction of the centaur Chiron. But when wild centaurs steal Chiron's most precious possessions—two jars of Gorgon's blood, one with the power to heal any wound and the other a poison deadly enough to massacre multitudes—Jason must recover the blood before it can destroy the city of Iolcus. As he undertakes the quest with a band of unruly companions, Jason learns he's actually the true heir to the throne of Iolcus. Only by proving himself worthy of leading this troop of young heroes can Jason stop the savage centaurs and save his city from slaughter. This ebook features personal histories by Jane Yolen and Robert J. Harris including rare images from the authors' personal collections, as well as a timeline of the Heroic Age and a conversation between the two authors about the making of the series.