"After taming the fiery bulls," continued King Æetes, who was determined to scare Jason if possible, "you must yoke them to a plough, and must plough the sacred earth in the grove of Mars, and sow some of the same dragon's teeth from which Cadmus raised a crop of armed men. They are an unruly set of reprobates, those sons of the dragon's teeth; and unless you treat them suitably, they will fall upon you sword in hand. You and your nine-and-forty Argonauts, my bold Jason, are hardly numerous or strong enough to fight with such a host as will spring up."