Notwithstanding every precaution employed by Centeno to conceal his operations and intentions, it was impossible to prevent intelligence from spreading in various directions, more especially after the expedition of Mendoza to Arequipa. Every thing he had already done, even the number of his troops, and of the musquets and horses he had collected, was fully known, by means of Indians and Spaniards who had escaped from La Plata, in spite of the guards which had been set, to watch the passes of the mountains. Alfonso de Toro, who acted as lieutenant governor of Cuzco under Gonzalo Pizarro, happened at this time to be a hundred leagues to the northward of that city, keeping guard in one of the passes of the mountains, as by letters from Gonzalo the viceroy was reported to have gone into the mountainous country, and was supposed to have directed his march by that road toward the south of Peru. On receiving notice of the late revolution at La Plata, De Toro returned in all diligence to Cuzco, where he levied forces to oppose Centeno; and, having assembled the magistrates and principal inhabitants of Cuzco, he informed them of what had occurred at Las Charcas, and as there was a sufficient force in Cuzco to suppress the royalists, he thought it incumbent on him to march to La Plata for that purpose. To gain them over to his purpose, he represented that Centeno had revolted without any just cause, and had usurped authority in Las Charcas for his own private ends, under pretence of serving the king; whereas Gonzalo Pizarro, being actual governor of the kingdom of Peru, ought to be obeyed as such till his majesty sent orders to the contrary. That the revolt of Centeno, being both criminal in itself and contrary to the law, every one was bound to resist him, and to punish his temerity. He recalled to their remembrance, that Gonzalo Pizarro was engaged in serving the general interest of the colonists, to procure the revocation of the obnoxious ordinances, in which common cause he had exposed his fortune and personal safety to every hazard, as it was well known that every inhabitant of Peru would be stripped of his property if the regulations were put in force. That besides the general advantage procured by Gonzalo in setting aside the obnoxious regulations, for which all were infinitely indebted to him, it was obvious that he had not in any respect conducted himself contrary to the royal orders, and had not in any manner set himself against the authority of the sovereign; since, on his arrival at Lima for the purpose of presenting their remonstrances, the judges of the royal audience had already arrested the viceroy and sent him out of the kingdom, of which these judges had appointed Gonzalo interim governor; and that in marching in a warlike manner against the viceroy, he had acted at the request and by the orders of the royal audience; as was manifest by his being accompanied by Cepeda, one of the royal judges and chairman of the audience.