A1: It's under bevelle

A2: In Bevelle, the first time you go under bevelle. You come across three glider thinggys, take the one to the left up and then once your at the second level to were you take another glider to continue on you walk back towards the screen and jup back down to the lower level, then take the center one and it will take you to a plat form, there is a box you stand on, stand on that and it will activate some stairs to a box where you continue on. After that take the glider back and take the glider on your right, after that run strait to the glider you took the first time and take that one back down, then take the center glider again and it will lead you to another plat form, step on the box in that one and it will compleate the stairs to the box. Take the glider back and the other glider you took to come back down back up. Up there you will se two boxes to stand on, stand on both of those and it will open up a path way to get to the glider at the oher end on the lage plat form. After you do that you will come to an area where Yuna will be facing a save point. to her left his a bunch of jumping stairs, take those and jump to the box. Open the box and there you go! You have the Dark Mage Dressphere. Go back over to the save point and save because you dont want to lose all of nice data if you where to die in the up comming boss batlle, not very far away.