Other answers i don t remember if the demon drops the key or you get it from the guy that gives you the estus flask one of them should give you the key to open that door if you didn t got it then.
Undead asylum locked door.
It is the rusted ring and you can t get it until you leave the asylum and come back later.
Once outside you ll emerge onto a balcony.
Read the messages on the floor to learn more about special.
Once you have finished off your first real enemy be sure to heal up using your estus flasks if you ve taken any damage.
Keep this in mind for your return to the northern undead asylum.
If you recall from your first run through of the area the door behind the lone undead soldier sword on the third level s west wing was locked but is unlocked with the undead asylum f2 west key which you should have just gotten from the firelink shrine on your way back to the northern undead asylum.
Used to unlock the floor 2 west door in the asylum when you.
Dispatch the hollow guarding the door and use the undead asylum f2 east key to open the door.
When you are ready enter the fog gate.