Bloodborne The Old Hunters - How to get "Milkweed" Rune + All 3 Brain Fluid Locations

Milkweed Rune + how to get all 3 Brain Fluids, where/how to get the 3rd Brain Fluid Bloodborne The Old Hunters. To get the rune you need to give Saint Adeline 3 Brain Fluids in the Research Halls. These can all be found in the Research Hall too, and the Milkweed Rune is needed to use the Kos Parasite weapon and to obtain the Accursed Brew from the NPC in the Fishing Hamlet. Timestamps: 00:00 - Brain Fluid Location 01:46 - Give Saint Adeline Brain Fluid (Blood of Adeline) 02:34 - Brain Fluid Location 03:30 - Give Saint Adeline Brain Fluid (Balcony Key) * May need to go to the Hunter&Dream a couple of times for her to spawn in corner as blob. 04:12 - Brain Fluid 3# Location (Kill Saint Adeline as blob) 05:14 - Give Saint Adeline Brain Fluid (Milkweed Rune) 06:21 - Milkweed Rune Preview / Kos Parasite For the 3rd Brain Fluid you need to kill her in the corner of the room. Once you go back to the Hunter&Dream she respawns and you can give her the Brain Fluid and she&reward you with the Milkweed Rune. To turn her into a blob I think you&need to go back to the Hunter&Dream and back there again.