This quest is a sort of summary and conclusion of what you have done in France to remove the danger of the Franks attacking your settlement in England.
Charles' troubled reign is ended. Eivor returns to Melun to confer with Toka and their allies.
Victory
Quest stages of Victory
1. Return to Toka in Melun
Return to the longhouse in Melun. You will meet both Toka and Count Odo there. Depending on how you dealt with Charles they will be very happy or less happy, especially Odo.
After Odo leaves the long house, you will receive a gift from Toka and you will say goodbye to each other.
And that's pretty much the end of your adventure in France. All that remains is for you to return to your settlement and share information with Randvi about how you solved the problem.