The Oratorio de San Felipe Neri, formerly the convent of San Pedro, was the principal college of the Jesuits, who, at the time of their expulsion, possessed immense wealth. In 1773 a secret order was dispatched from the King of Spain, directing the viceroys to arrest all the Jesuits in the South American provinces, in a single night, and ship them to Spain. So secret was the order that the viceroy and those officers whose assistance was to be employed, were supposed to be the only ones who knew any thing of it. The viceregal council was summoned at 10 o'clock on the appointed night, and the royal order read to them. No one was allowed to leave the room, for fear that intelligence might be communicated to the Jesuits. At midnight the officers were sent to the convent to arrest the members of the order. The door was opened at the first summons, and the officer was conducted to the great hall of the convent, where all the brethren were assembled, each with a bag containing a few requisites for the voyage. So in all the other convents of the order. The same vessel which had conveyed the royal decree, had brought instructions from the Superior of the Jesuits in Madrid, who had gained intelligence of the secret, directed to the vicar-general at Lima, commanding him to be in readiness when the arrest should be made. The brethren were sent to Callao under a strong guard, and as soon as possible were put on shipboard. But when the eager officials made search for the immense wealth which was known to be in the treasury of the order in San Pedro, the keys of which were laid out in readiness for them in the apartment of the Superior, only a few thousand dollars were discovered. The rest had vanished like a vision. And to this day it has eluded the most vigilant search. An old negro, who was in the service of the convent, testified that for several nights he and his fellow-servants, with their eyes closely bandaged, were employed in conveying bags of treasure to the convent vaults, attended by two of the brethren of the order. He could give no clew to the place of concealment, except that he thought there was a subterranean spring near the spot.