Indoctrination (Civ6)/Civilopedia

In the sub-cellar of a Gilded Vault, you catch a glimpse of an iron door. Before it slams shut, you see a long hallway extending deep underground, and a glimmer of golden light somewhere at its end. Your contact, Athena (certainly not her real name, who can say who she is under her hawk's mask?), smiles cryptically. "For another time," she says.