go to doctor elaraths house, talk to him, get the key to his house and open it back up once he's left, then go through the doors by using the candels, then go down the staircase, fight the monster, and to your right, on a shelf u'll find 2 potions.
BTW <img src="/ubbthreads/images/graemlins/wave.gif" alt="" />, try to have some healing potions with u, becuase the monster hurts, and there are traps all over <img src="/ubbthreads/images/graemlins/rolleyes.gif" alt="" />.