Sister of Helios, Eos is the Goddess of Dawn in Greek mythology.
Barely holding on after her brother's disappearance, which caused Morpheus to take over the Earth, Eos asked Kratos to find Helios, and tells him to find the Sun Shield. Kratos then speaks with Eos face to face in the Caves of Olympus. where she tells him to seek outthe Primordial Fire to help him in his quest.