Question: where is ainigmata ostraka in desphina fort?
Answer: This ostraka is located inside Despina Fort, but you don't have to take on its level 12 inhabitants if you don't want to. The fort is located in the northwest region of the Hill of Sacred War. It's located on the west side of the area, just behind a statue with a snake wrapped around it. Use Ikaros to find it.