Reaper Suit Location
Reaper Suit, it’s kind of a weird thing. You first have to go to Aleena’s Rest and head north east, where you’ll find a cave.
You’ll know it’s the right one because it has barrels in front. Inside is a white seashell. Take this back to Grimwood, where you travel west and then down into a southwest corner, the same area where you found one of the locked Plagume workshops.
If you go just north of there you’ll find a shack with an old man. Give him the stone, let him walk off, then you get the suit in the other room.