Pausanias Description of Greece 3.15.6

[6]
  As you go from the Course towards the east, there is a path on the right, with a sanctuary of Athena called Axiopoinos (Just Requital or Tit for Tat). For when Heracles, in avenging himself on Hippocoon and his sons, had inflicted upon them a just requital for their treatment of his relative, he founded a sanctuary of Athena, and surnamed her Axiopoinos because the ancients used to call vengeance poinai. There is another sanctuary of Athena on another road from the Course. It was dedicated, they say, by Theras son of Autesion son of Tisamenus son of Thersander, when he was leading a colony to the island now called Thera after him, the name of which in ancient times was Calliste (Fairest).

[6] As you go from the Course towards the east, there is a path on the right, with a sanctuary of Athena called Axiopoinos (Just Requital or Tit for Tat). For when Hēraklēs, in avenging himself on Hippokoön and his sons, had inflicted upon them a just requital for their treatment of his relative, he founded a sanctuary of Athena, and surnamed her Axiopoinos because the ancients used to call vengeance poinai. There is another sanctuary of Athena on another road from the Course. It was dedicated, they say, by Theras son of Autesion son of Tisamenus son of Thersandros, when he was leading a colony to the island now called Thera after him, the name of which in ancient times was Kalliste (Fairest).