Then head up where a Jailer will be waiting around a corner on your left. Wait until it is facing and walking away from your side. Look ahead, and you will see another Jailer patrolling on a bridge. Kill the corpse, and then collect it before continuing. To the right of it will be a Reanimated Corpse in a cell, ready to attack if you pick it up. Head out, kill the Jailer, and then turn right. Thankfully, if you have been upgrading your weapons, they don’t have a huge amount of HP. The Jailers will then begin hitting you with their branding iron, which will slow your movement down, making it even easier to kill you. The lantern also prevents you from healing. When the lantern they are holding turns red, your HP bar will begin to shorten limiting your max HP.
These are Jailers and are a nuisance to deal with. Going through the door, you should see an enemy walk past.