they're in the forest, but very very hard to find (recommend you load the game when you still have them), you'll have a strong sword after his come-out quest, but you can buy that sword at the shop anyway
the easy ones are from the centaur (talk wif him), one is around the centaur, and one is at a corner of a structure at the ruins near Kay.
3 other ones are deep in the forest, you can take a look at the map to see their locations but as I say they're really hard to find :D