A research android poses a simple question to Mother Saulcerite of the planet Bavaria: does an android have a soul that can be redeemed? Is it enough to be pious and law-abiding and to have free will, or is the non-human excluded by definition?

The question involves Mother Saulcerite’s research into the history of Gregoria I, the first official female Pope. The quest for an answer leads her to the discovery of a secret monastic order and takes her on a mission of espionage in the Roman catacombs.

When the time for secrecy, disguise and subterfuge is past, the answers to many questions will become clear, as they always were.