That officer had now taken up a position on the farther side of the Rio de Abancay, where he lay, with the strength of his little army, in front of a bridge, by which its rapid waters are traversed, while a strong detachment occupied a spot commanding a ford lower down the river. But in this detachment was a cavalier of much consideration in the army, Pedro de Lerma, who, from some pique against his commander, had entered into treasonable correspondence with the opposite party. By his advice, Almagro, on reaching the border of the river, established himself against the bridge in face of Alvarado, as if prepared to force a passage, thus concentrating his adversary's attention on that point. But, when darkness had set in, he detached a large body under Orgonez to pass the ford, and operate in concert with Lerma. Orgonez executed this commission with his usual promptness. The ford was crossed, though the current ran so swiftly, that several of his men were swept away by it, and perished in the waters. Their leader received a severe wound himself in the mouth, as he was gaining the opposite bank, but, nothing daunted, he cheered on his men, and fell with fury on the enemy. He was speedily joined by Lerma, and such of the soldiers as he had gained over, and, unable to distinguish friend from foe, the enemy's confusion was complete. Meanwhile, Alvarado, roused by the noise of the attack on this quarter, hastened to the support of his officer, when Almagro, seizing the occasion, pushed across the bridge, dispersed the small body left to defend it, and, falling on Alvarado's rear, that general saw himself hemmed in on all sides. The struggle did not last long; and the unfortunate chief, uncertain on whom he could rely, surrendered with all his force,--those only excepted who had already-deserted to the enemy. Such was the battle of Abancay, as it was called, from the river on whose banks it was fought, on the twelfth of July, 1537.- Never was a victory more complete, or achieved with less cost of life; and Almagro marched back, with an array of prisoners scarcely inferior to his own army in number, in triumph to Cuzco.17