For Maura E. Kirby and Mary L. Dewing

On December 7, 2059, Emilio Sandoz was released from the isolation ward of Salvator Mundi Hospital in the middle of the night and transported in a bread van to the Jesuit Residence at Number 5 Borgo Santo Spirito, a few minutes' walk across St. Peter's Square from the Vatican.

I don't understand, but I can learn if you will teach me.

Unaware of his own movement, schooled by old habit, Vincenzo Giuliani rose and went to the windows, and stood looking, for how long he had no idea, across a grassy open courtyard to a complex panorama of medieval masonry and jumbled rock, formal garden and gnarled trees: a scene of great and beautiful antiquity.