Zhar is a Unique Counselor Mage on Level 8 in the Single-Player mode of Diablo I. Speaking to Zhar will activate a quest, in which he will give the player a book. One can also click on all the books on the pedestals in the library, which will drop different scrolls. Trying to grab the books in the bookcase will infuriate him and will cause him to attack the player. He is most easily defeated by being cornered or, even better, catching him between the two lamps left and right in front of the bookcase. He will not be able to Phasing away but phase himself out and reappear every few seconds, leaving enough time for the player to hit him once or twice, without attacking the character.