Iodameia
A priestess of Athena Itonia, who once, as she entered the sanctuary of the goddess by night, was changed into a block of stone on seeing the head of Medusa, which was worked in the garment of Athena. In commemoration of this event, a fire was every day kindled on the altar of Iodameia by a woman amid the exclamation, "Iodameia lives and demands fire!" (Description of Greece by Pausanias. ix. 34. § 1.)
From Smith's Dictionary of Greek and Roman Biography and Mythology