Sister of Sorrow Assassin's Creed Valhalla Quest
Group: Francia (The Siege of Paris)
You will receive this quest after completing quest "The Missing Queen". It looks like Queen Richardis is being held captive by the Little Mother in the village of Aquila and that is where you should go.
Eivor goes to Aquila, where Little Mother is holding Queen Richardis.
Related points of interest
Aquila Francia
Prior quests
To begin Sister of Sorrow you must first complete The Missing Queen.
Quest stages of Sister of Sorrow
2. Find and Assassinate Little Mother
Somewhere in the village you should be able to find a singing child. It can be found in various places so when you hear it singing, it means you are close. When it finishes singing you will be able to talk to it and then you will learn that you should direct your steps to the local crypt.
The crypt is nearby, on a hill but you will need a key to get inside.
You will find the key in the nearby cemetery. To get it, first get rid of the soldiers you encounter there. You should have no problem killing them one by one without the others noticing - Gedriht should be last.
Open the crypt, go to the underground, kill two more soldiers and talk to the woman you meet in one of the rooms. She will think you are the new assistant and this way you will get additional clues.
You have to participate in the Deliverance ritual to get close to Little Mother. First, pick up the dagger stuck in the table.
The dagger must be dipped in blood. To do this, find the large tub of blood located further into the room and interact with it.
Through the opening near the floor, go to the next room and take the key you find there.
Use the key you found to open the door through which you will get to the sanctuary where the ritual takes place.
3. Assassinate Little Mother
To avoid having to fight the guards quietly sneak up to one of the them standing closest to you and steal the key from him (you can also assassinate him).
Then go back to the upper level and open the cell with the prisoner.
This will cause the soldiers to leave in search of the runaway and leave the Little Mother and Queen alone. You can then safely approach them.
Little Mother will consider you as her new assistant and after a short speech she will ask you to hand her the dagger. You will have a limited amount of time to attack her and kill her by surprise.
4. Leave with Richardis
Once Little Mother is dead, follow Richardis. At some point you will have to clear the path of rats for her. Preferably using a bow, destroy the crates and the wooden wall behind which the sewer hole is located.
Then, chase the rats to escape to this hole and move the rack to cover it and then Richardis will move on.
If you don't have the Incendiary Powder Trap ability then take the jar of oil that is in the other part of the room.
Follow Richardis into the tunnel. At the end of the tunnel you will see a stone wall that you must destroy. Once you do this you will come out and this quest will end.
After completing Sister of Sorrow you will get or will be able to get The Queen's Gambit.