I 10.3
During the dedication of the oratory of Saint Sebastian, a woman from Etruria is possessed by the devil.
The presbyter of this oratory, seeing her so violently vexed, took straight from the altar a linen cloth (sindon), and covered her with it. However, the devil possessed him as well, and because he dared to do something beyond his power, he was compelled to learn by his own vexation who he was.
The woman is finally cured by bishop Fortunatus of Todi.
(trans. Gardner 1911: 38-39; changed by J. Szafranowski)