After defeating Darkbeast Paarl you can open the large double doors that lead to Old Yharnam and return to Retired Hunter Djura , provided you left him alive. If you choose to spare the beasts he will hand over the Powder Keg Hunter Badge and Brush off Dust gesture. You can now defeat him if you wish to make his armor set appear at the merchants in Hunter’s Dream.
You can also return to the cellar of the prison in Hypogean Gaol, wearing one of the Church Sets, to speak with Sister Adella and send her to Oedon Chapel or Iosefka’s Clinic.
If you sent Adella to Oedon Chapel you can speak with her at the back of the chapel for the Church Bow (Female) gesture and the Blood of Adella . Note that if you currently have a vial of Arianna’s Blood you will need to discard it in order to get Adella’s Blood, which you may want to do if you want to prevent Adella from killing Arianna.
On the flip side, if you sent Adella to Iosefka’s Clinic you can return to Isoefka for your reward.
You can now take the doorway across from the Lonely Old Dear in Oedon Chapel to reach an elevator and ride the elevator up, turning around and running against the wall to find a hidden path leading above Oedon Chapel for the Formless Oedon Rune and Messenger Urn Festival .