At this critical juncture, Pizarro was strengthened by the arrival of his old supporter, the licentiate Espinosa, with two hundred and fifty men, and a shipload of arms and provisions from his great cousin Cortez. He started for Cuzco, but at the overpowering news of Almagro's wanton treachery, retreated to Lima and fortified his little capital. He was clearly anxious to avert bloodshed; and instead of marching with an army to punish the traitor, he sent an embassy, including Espinosa, to try to bring Almagro to decency and reason. But the vulgar soldier was impervious to such arguments. He not only refused to give up stolen Cuzco, but coolly announced his determination to seize Lima also. Espinosa suddenly and conveniently died in Almagro's camp, and Hernando and Gonzalo Pizarro would have been put to death but for the efforts of Diego de Alvarado (a brother of the hero of the _Noche Triste_), who saved Almagro from adding this cruelty to his shame. Almagro marched down to the coast to found a port, leaving Gonzalo under a strong guard in Cuzco, and taking Hernando with him as a prisoner. While he was building his town, which he named after himself, Gonzalo Pizarro and Alonso de Alvarado made their escape from Cuzco and reached Lima in safety. Francisco Pizarro still tried to keep from blows with the man who, though now a traitor, had been once his comrade. At last an interview was arranged, and the two leaders met at Mala. Almagro greeted hypocritically the man he had betrayed; but Pizarro was of different fibre. He did not wish to be enemies with former friends; but as little could he be friend again to such a person. He met Almagro's lying welcome with dignified coolness. It was agreed that the whole dispute should be left to the arbitration of Fray Francisco de Bobadilla, and that both parties should abide by his decision. The arbitrator finally decided that a vessel should be sent to Santiago to measure southward from there, and determine Pizarro's exact southern boundary. Meantime Almagro was to give up Cuzco and release Hernando Pizarro. To this perfectly just arrangement the usurper refused to agree, and again violated every principle of honor. Hernando Pizarro was in imminent danger of being murdered; and Francisco, bound to save his brother at any cost, bought him free by giving up Cuzco.