To these proposals the governor now condescended to reply. It might be thought, from his answer, that he felt some compassion for the youth and inexperience of Almagro, and that he was willing to distinguish between him and the principal conspirators, provided he could detach him from their interests. But it is more probable that he intended only to amuse his enemy by a show of negotiation, while he gained time for tampering with the fidelity of his troops.
He insisted that Almagro should deliver up to him all those immediately implicated in the death of Pizarro, and should then disband his forces.
On these conditions the government would pass over his treasonable practices, and he should be reinstated in the royal favor. Together with this mission, Vaca de Castro, it is reported, sent a Spaniard, disguised as an Indian, who was instructed to communicate with certain officers in Almagro's camp, and prevail on them, if possible, to abandon his cause and return to their allegiance. Unfortunately, the disguise of the emissary was detected. He was seized, put to the torture, and, having confessed the whole of the transaction, was hanged as a spy.
Almagro laid the proceeding before his captains. The terms proffered by the governor were such as no man with a particle of honor in his nature could entertain for a moment; and Almagro's indignation, as well as that of his companions, was heightened by the duplicity of their enemy, who could practise such insidious arts, while ostensibly engaged in a fair and open negotiation. Fearful, perhaps, lest the tempting offers of their antagonist might yet prevail over the constancy of some of the weaker spirits among them, they demanded that all negotiation should be broken off, and that they should be led at once against the enemy.17The governor, meanwhile, finding the broken country around Guamanga unfavorable for his cavalry, on which he mainly relied, drew off his forces to the neighboring lowlands, known as the Plains of Chupas. It was the tempestuous season of the year, and for several days the storm raged wildly among the hills, and, sweeping along their sides into the valley, poured down rain, sleet, and snow on the miserable bivouacs of the soldiers, till they were drenched to the skin and nearly stiffened by the cold.18 At length, on the sixteenth of September, 1542, the scouts brought in tidings that Almagro's troops were advancing, with the intention, apparently, of occupying the highlands around Chupas. The war of the elements had at last subsided, and was succeeded by one of those brilliant days which are found only in the tropics. The royal camp was early in motion, as Vaca de Castro, desirous to secure the heights that commanded the valley, detached a body of arquebusiers on that service, supported by a corps of cavalry, which he soon followed with the rest of the forces. On reaching the eminence, news was brought that the enemy had come to a halt, and established himself in a strong position at less than a league's distance.