To get this quest, complete quest Perikles's Symposium and return to your ship / The Adrestia.
Alexios landed on Mykonos in response to a desperate plea from a failing rebellion. But to help the people overthrow their Athenian oppressors, he first had to find the rebel leader named Kyra.
Hints:
Go to Porphyrion Cave, you will meet Kyra there.
Follow her to the second camp. Kill all the soldiers who try to kill you.
In the second camp a warrior from Sparta will join you.
Follow Kyra ans Spartan Leader to Athenian camp and kill all the soldiers there.
The choice you will have to make decides only which support quest will automatically appear in your journal. If you want to acquire other quest, all you have to do is to find (he/she will be marked on the map) and talk to the person whose plan you have rejected and offer your services.
Rewards: Epic XP, Legendary Drachmae
