A spy, under the guise of an astrologer, may describe to a chief the destiny of a maiden who is at the point of being married to another, and say: "This man's daughter deserves to be the wife of a king and will bring forth a son, destined to be a king; purchase her with all your wealth, or seize her by force." When it is not possible to secure her, spies should enrage the parties; but when she is secured, quarrel will necessarily ensue.