When Balthasar de Loyasa had procured the safe conduct from the viceroy for his employers, he set out without loss of time for the army of Gonzalo Pizarro. As his departure and the nature of his dispatches were soon known in Lima, it was universally believed there that the troops under Pizarro would soon disperse of their own accord, leaving the viceroy in peaceable and absolute command of the whole colony, upon which he would assuredly put the ordinances in force with the utmost rigour to the utter ruin of every one: For this reason, several of the inhabitants, and some even of the soldiers belonging to the viceroy, came to the resolution of following Loyasa and taking his dispatches from him. Loyasa left Lima in the evening of a Saturday, in the month of September 1545, accompanied by Captain Ferdinand de Zavallos. They were mounted on mules, without any attendants, and had no baggage to delay their journey. Next night, twenty-five persons set out from Lima on horseback in pursuit of them, determined to use every possible expedition to get up with Loyasa that they might take away his dispatches. The chiefs in this enterprize were, Don Balthasar de Castro, son of the Conde de la Gomera, Lorenzo Mexia, Rodrigo de Salazar, Diego de Carvajal usually called the gallant, Francisco de Escovedo, Jerom de Carvajal, and Pedro Martin de Cecilia, with eighteen others in their company. Using every effort to expedite their journey, they got up with Loyasa and Zavallos about forty leagues from Lima, and found them asleep in a _tambo_ of palace of the Incas. Taking from them the letters and dispatches with which they were entrusted, they forwarded these immediately to Gonzalo Pizarro by means of a soldier, who used the utmost diligence in travelling through bye ways and short cuts through the mountains, with all of which he was well acquainted. After this, de Castro and the rest of the malecontents continued their journey towards the camp of Gonzalo, taking Loyasa and Zavallos along with them under strict custody.
Upon receiving the intercepted dispatches which were brought to him by the soldier, Gonzalo Pizarro secretly communicated them to Captain Carvajal, whom he had recently appointed his lieutenant-general, or maestre de campo, in consequence of the sickness of Alfonzo de Toro, who held that commission on commencing the march from Cuzco. After consulting with Carvajal, he communicated the whole matter to the captains and those other chiefs of the insurgent-army who had shewn no intentions of abandoning him, as they had not participated in applying for the safe conduct from the viceroy. Some of these, from motives of enmity against individuals, others from envy, and others again from the hope of profiting by the forfeiture of the lands and Indians belonging to the accused, advised Gonzalo to punish these persons with rigor, as a warning to others not to venture upon similar conduct. In this secret consultation, it was determined to select the following from among those who were clearly implicated in taking part with the viceroy, by their names being contained in the safe conduct taken from Loyasa: Captain Gaspard Rodriguez; Philip Gutierrez, the son of Alfonso Gutierrez of Madrid who was treasurer to his majesty; and Arias Maldonado, a gentleman of Galicia, who had remained along with Gutierrez at Guamanga, two or three days march in the rear of the army, under pretence of having some preparations to make for the journey. Accordingly, Gonzalo sent off Pedro de Puelles to Guamanga accompanied by an escort of cavalry, who arrested these two latter gentlemen and caused them to be beheaded.