At length the time came when Harpagus thought the right moment had arrived for a revolt. Cyrus had now determined to attempt the enterprise. Astyages had been guilty of some unusual acts of oppression, by which he had produced great dissatisfaction among his people. Harpagus found the principal men around him willing to enter into the conspiracy, so he desired that Cyrus should come into Media with as large a force as he could raise, and head the insurrection against the government of Astyages. Harpagus did not dare to trust this message to any messenger, and so he took this novel way of communicating with Cyrus. He wrote a letter to Cyrus, and then taking a dead hare he opened the body and concealed the letter within, and then neatly sewed up the skin again so that no signs remained of the incision. He then delivered the hare to some trusty servants, who should also carry hunting weapons, as though about to go upon some hunting expedition. He also commanded that they should give the hare to Cyrus himself, and that he should open it alone. The plan was successful; the hare reached the hands of Cyrus in safety, and opening it, he read a letter which was in substance as follows:— “It is plain, Cyrus, that you are a favorite of Heaven, and that you are destined to a great and glorious career. You could not otherwise have escaped, in so miraculous a manner, the snares set for you in your infancy. Astyages meditated your death, and he took such measures to effect it as would seem to have made your destruction sure. You were saved by the special interposition of Heaven. You are aware by what extraordinary incidents you were preserved and discovered, and what great and unusual prosperity has since attended you. You know, too, what cruel punishments Astyages inflicted upon me for my humanity in saving you. The time has now come for retribution. From this time the authority and the dominions of Astyages may be yours. Persuade the Persians to revolt. Put yourself at the head of an army and march into Media. I shall probably myself be appointed to command the army sent out to oppose you. If so, we will join our forces when we meet, and I will enter your service. I have conferred with the leading nobles in Media, and they are all ready to espouse your cause. You may rely upon finding everything thus prepared for you here. Come, therefore, without delay.” Cyrus determined to comply with the proposal of Harpagus. He therefore resorted to deceit, or, as he called it, stratagem. Thus war upholds and justifies falsehood and treachery under the name of stratagem. Cyrus had a letter prepared in the form of a commission from Astyages, appointing him commander of a body of Persian forces to be raised in the service of the king. He then read this false letter at a public assembly, and called upon all the Persian warriors to join him.