To find Master Unne, the professor who studies Lefineish, obtain the Slab from Kraken's Castle Underwater. To understand the Lefineish, Master Unne MUST decipher the Slab. Take the Slab to the village that the Vampire destroyed the clinic in. (If you are confused, it's the first town you go to after Nerdrick destroys the rock with TNT. ) He is in the Upper-left corner of town, by the graveyard. Once he deciphers the Slab, head to the Lefineish's Village!