Alexios came across a slave who said he paid his master for his freedom, but wasn't given it. He begged Alexios for help in getting justice.
A Life's Worth
Related points of interest
Objectives of A Life's Worth
1. Talk to the slave master
The slave master is a member of a cult and wants you to kill someone for him, only then will Phaidon be released.
Sokrates will appear and in his style will help you make the right decision.
2. Kill the woman or Turn Down the master
This objective will only be available if you have not completed the quests for Odessa and she is still in Megaris. I recommend not to kill Odessa because anyway you will free the slave by killing his master :-)
3. Return to the slave master
Talk to him or just kill him.
4. Quest Completed
Rewards: Legendary XP, Rare Drachmae, Staff of Knowledge (Epic Staff)