I can help you kill the monsters sometime, but if you want to you can get the scraps on your own instead:
You need to get a Weighted stone, shown on This map.
That'll allow you to pass the banishing gate on your own. Go past banishing gate 1 and you should be on this map.
The fragments are at (G-6), (H-7), and (I-9) of this map.
You enter on the first map of this page
if you go from Rolanberry Fields. The scraps are on (I-10) of map 1, (G-10) of map 2, and (I-6) of map 3.
Enter from the (I-10) entrance of Batallia Downs (The really south entrance), this'll land you on map 1
. Go to (H-9), (F-9), and (F-7). If you run into a wall at any point there's a switch at (H-8) that should set things right, but once you get that you should be able to run in a clean path between all the scraps. I'd bring a scroll of warp in case someone happens to flip the switch while you're running around in there.
If your dancer sub is level 25 I'd go as that so I can use Spectral Jig, too.