Underground Book Storage First Floor
Enemies: 1 white knight (Wiegraf), 2 knights, 2 archers, 1 wizard (These enemies are on the other side)
Conditions for winning: Defeat Wiegraf!
You'll have to be quick or this can get ugly, I reccomend a summoner with Cyclops here. Make sure you can target Wiegraf with it, then get away from him, Agrias' sword skills and Mustadio's gun will help also. Wiegraf knows all the Holy Sword skills here, so be careful, they can be fatal to your magic users. Hopefully you'll win with Cyclops.