While fiscal of Guatemala, Caballon had been requested by the audiencia to undertake the pacification of Costa Rica, conjointly with a wealthy ecclesiastic, named Juan de Estrada Rábago, and it was for this purpose that he had originally proceeded to Nicaragua. In 1560 an expedition was organized, Rábago furnishing the necessary funds, for Caballon had none. Each one was to found his own settlements, but to render aid and advice to the other. The former with four vessels sailed up the Desaguadero, while Caballon journeyed by land and explored the southern coast. Whether they ever met according to their original plan is doubtful, and their lack of coöperation may partly explain the failure of the enterprise. Rábago with a party of sixty Spaniards founded the "Villa del Castillo de Austria" on the bay of San Gerónimo.[XXIV‑4] He also speaks of three other towns which he founded, and of churches which he built and furnished, but fails to name or locate them. Caballon established the Villa de Landecho, on the coast near the southern border of the province, and three days' journey thence the settlement of Castillo de García Muñoz. The reasons that induced him to select the former site were known only to himself, and are not recorded by the chroniclers. There were no Indians in its neighborhood to be enslaved; most of the land was marshy, and the high ground sterile and consisting mainly of bare rock. Caballon was soon afterward appointed fiscal of the audiencia of Mexico, and Rábago, being now left in sole charge, was ordered by the emperor not to abandon the undertaking, though the Spaniards were in sore distress. "It is now two years and more," write the members of the cabildo from Cartago, in December 1562, "since we entered this province in company with the licentiate Juan de Caballon, and it is with great difficulty that we have held out against the rebellious natives, who could not be converted and brought to obedience by peaceable means."[XXIV‑5]