Eh, that 100 nobles thing just takes a LOT of practice. I can't get 100 nobles every time no matter how fast or perfect I think I do it. Sometimes I do, sometimes I don't. o_O

Anyhow, as far as the moonstone locations go:

1. When you get to the Conde Petie Mountain Pass scene (after meeting Eiko), you'll need to find four colored stoned located in four statues in that dungeon. Once you get all four, you find a fifth statue, put all four colored stones in, and they will be turned into a moonstone (if you need help on this, please ask).

2. You can also get one from one of the friendly monsters, the purple Jabberwok. You find him in the forest directly east of Oeilvert.

3. If you go back to Alexandria on disc 4 and find Stiltzkin there, his usual collection of items to sell include a moonstone.


If you equip the moonstone to Eiko, it gives Carbuncle a magic called "Pearl Light," which casts shell on the entire party.

Hope this helps a little... ^_^