You have to help Phidias in the "Escape from Athens" quest in Assassin's Creed Odyssey. Phidias is a famous painter, sculptor, and architect in Greek history, and in the game, he is one of the targets of the Cult of Kosmos. It is best to be at least a Level 15 before attempting this challenge.
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His work was renowned for its beauty and sophistication, but that is what put him in the sights of this group as they put him on trial to
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