Meet Sister Bernice — newest initiate into the order of Saint Celestion. Such is her devotion to the faith that she and her young companion, Sister Ruth, have undertaken a pilgrimage to the planet Agora, birthplace of the blessed Saint himself. The pilgrims aren't alone, however. Also on the planet is a team of archaeologists searching for the lost tomb of Celestion — a subject in which Sister Bernice seems curiously interested…