I'm pretty far into the game (but haven't triggered NG+), and on a whim I walked back from Majula to Old Akelarre, and inside the first oval-shaped room, where the 6 goblins ambush you, I can see, up on the second level, to the left as you enter the room, a glowing spinning thing. It looks much the way things look when another player character drops something for you to pick up.
I can't find any reference to this item anywhere, much less any way to get up there to get it. Has anybody else seen this, and has anybody gotten it? I need it. It taunts me.
EDIT: Screenshot of the item in question