Dwarfhold mountains

Once you enter you will be attacked by a crysbat asking if you have a Vizalain Seed to claim the cavern. if you don't it attacks you.

after you defeat the crysbat this conversation happens

Crysbat:"You have beaten me. But the fact remains, this cavern is not yours until you have a Seed."

Player: "Where do I get one of these Vizalain Seeds??"

Crysbat: "Valencia, the rare item hunter is the town of Battleon, knows of the fabled Crystal Caves. Perhaps a Seed is there"

Crysbat: "Find a seed, and then return here. Now, pardon me-- I need to get back to sleep."