The device succeeded so far as to convince the Spaniards of the poverty of the _Cunches_; but _Don_ Garcia could not all at once give up his plan of exploration. Seeking a guide from the envoys, he was given one who had instructions to conduct his army along the coast by the most desolate roads. So well did this individual fulfil his instructions that the Spaniards, who were accustomed to the most fatiguing routes, were forced to acknowledge that they had never encountered such difficulties before. To add to their trouble, during the fourth day’s march they were deserted by their guide, they being at the time in a desert beset by precipices. They were, however, constantly encouraged by their commander, and, overcoming all obstacles, they reached a high mountain, from which they could discern the great archipelago of _Chiloë_. This unexpected prospect filled them with delight. They had suffered from hunger for days; but on hastening to the shore they were well received by the natives, who approached them in their boats and offered them an abundant supply of provisions. All were now provided gratis with maize, fruit, and fish; and the Spaniards had an opportunity of coasting the archipelago to the Bay of _Reloncavi_ and of visiting some of the neighbouring islands. Amongst these explorers was the poet Ercilla, who marked on the bark of a tree on the southern side of the gulf the date of its discovery, February 28th, 1558.[P] Satisfied with his explorations, _Don_ Garcia de Mendoza now set out on his return, taking one of the islanders as his guide, who conducted him safely by another less difficult route to _Imperial_. On his way he founded the city of _Osorno_, which, owing to its manufactories of woollen and linen stuffs, as well as to the fine gold procured in its neighbourhood, rose rapidly into importance. Whilst Mendoza was absent on this expedition, Alonzo Reynoso, the commander of _Canete_, distinguished himself by an act of singular infamy even amongst the Spanish proceedings of the age. He had spared neither offers of reward nor the application of torture in order to discover the hiding-place of Caupolican. Having at length found a native who was amenable to one or other of these influences, he despatched under his guidance a detachment of cavalry, who succeeded in surprising the veteran general. It was not, however, until a gallant resistance from ten of his devoted followers that he consented to surrender--much to the indignation of his wife, who threw towards him his infant son, calling him at the same time a coward for not preferring to die on the spot. The distinguished prisoner was conducted before Reynoso, who immediately ordered him to be impaled, and in this condition to be despatched with arrows.