Location:Upon entering Darkroot Garden follow the road until you get to a door that is sealed then follow the path to the right of the door until you come to a white fog. Go through the fog and you will see a small forest in front of you as well as a corpse with the armor set. The corpse is guarded by two sleeping stone knights and four ents. You do not need to fight them, you can simply run up, get the items and run away.