Gaia

In Greek mythology, Gaia, also spelled Gaea /ˈdʒiːə/, is the personification of the Earth. Gaia is the ancestral mother—sometimes parthenogenic—of all life. She is the mother of Ouranus (Sky), from whose sexual union she bore the Titans (themselves parents of many of the Olympian gods), the Cyclopes, and the Giants; as well as of Pontus (Sea), from whose union she bore the primordial sea gods.
In campaign she has made a few appearances. Once in Dexicos they contacted Cyaro in order to get her to protect Adrasteia, a task they later fail. Her relationship to Adrasteia is familial in that Adrasteia is technically their grandaughter, through an Archdryad. Unfortunately their relationship is now strained due to Adrasteia communing with Koilos and breaking her connection with nature. This was told to the group when Cyaro and Adrasteia coomuned with Gaia at Adrasteia's family home. 
She later was communed with by Ghost when they cast Contact Other Plane, she answered questions about Koilos