Underground Cell Key

Key to the cell below the Grand Cathedral.

Hunters are held within the underground cell, so that things better left unseen, better left unknown, will decay quietly in the fallow darkness

Underground Cell Key is a Key Item in Bloodborne. It was added with The Old Hunters DLC


Underground Cell Key Usage



  • Research Hall: in Patient Room Floor 3, accessed after rotating the staircase. Key is on a dead body there. (Beware of attack from behind!)



  • Player note 1



Trivia goes here






    • Anonymous

      More Detailed Location09 Aug 2016 10:50  

      Go into Adeline's room and take the first elevator. Then go take the second elevator but halfway up, you'll see a spot for you to leave the elevator early on your left. Take that little exit and make a left. Continue ahead and go down the stairs on your right, then back up the next set of stairs on your left. Make another left, run all of the way to the end and you'll see it on your right.

      • Anonymous

        where?05 Jul 2016 14:42  

        "one of the side rooms" isn't exactly helpful. i just cleared it all the way to maria and meticulously searched every room i saw, so it must be pretty well hidden... can someone at least say which floor it's on?

      Load more