Young Yharnam girl (Viola's Daughter) | Side quests Bloodborne Guide

The window to the girl's room.

In Central Yharnam, on the square with the fountain, there is a gate, from behind which you can hear a music box playing. In the window, you can talk to a small girl. To get there, you need to visit the Aqueduct and exit at the other side. During the conversation, agree to find her mother and you receive a Tiny Music Box (you can use it while fighting Gascoigne).

In front of the gate to Cathedral ward, turn left to find the brooch

After the fight with Father Gascoigne, approach the closed gate, over the stairs, the key for which you receive. While in front of the gate, go left and reach the end, where you can jump down to a roof below. On the corpse, you find a Red Jeweled Brooch.

Take the item back to the window. It would be best if you kept the brooch for yourself, which you can trade for the red Gem to upgrade your weapon with. Tell the girl about a safe place, i.e. Oedon Chapel. After you give information about Iosefka Clinic you receive from Iosefka (after you visit her) Lead Elixir. However, you do not find the cloth in the sewers, then, which results in the quest being ended prematurely.

After the conversation with the girl, return to the sewers and kill the giant pig.

Then, reload the location and go to the sewers. In there, find the wild pig in the final tunnel. If you have returned the brooch, or told the girl about the safe chapel, after you defeat the pig, you find the Red Messenger Ribbon.

However, you find the other girl dead.

Your next step is to return to the window, where you have talked to the girl. Do this after you have defeated Rom, the Vacuous Spider. In the window, this time, you find the girl's older sister. Give her the Red Messenger Ribbon, and load the location again (e.g. by using the Hunter Badge). All in all, go to the same location, climb down the ladder, where you find a single opponent and the dead girl. Loot her body for the White Messenger Ribbon.