Book 1
28.4
On descending, not to the lower city, but to just beneath the Gateway, you see a fountain and near it a sanctuary of Apollo in a cave. It is here that Apollo is believed to have met Creusa, daughter of Erechtheus.... when the Persians had landed in Attica Philippides was sent to carry the tidings to Lacedaemon. On his return he said that the Lacedacmonians had postponed their departure, because it was their custom not to go out to fight before the moon was full. Philippides went on to say that near Mount Parthenius he had been met by Pan, who told him that he was friendly to the Athenians and would come to Marathon to fight for them. This deity, then, has been honored for this announcement.
28.5
There is also the Hill of Ares, so named because Ares was the first to be tried here; my narrative has already told that he killed Halirrhothius, and what were his grounds for this act. Afterwards, they say, Orestes was tried for killing his mother, and there is an altar to Athena Areia (Warlike), which he dedicated on being acquitted. The unhewn stones on which stand the defendants and the prosecutors, they call the stone of Outrage and the stone of Ruthlessness.