Collect Frostgeist Skull

Journal
''Esmeralda can tell me how to use the mystical looking-glass if I first bring her the frozen skull of a frostgeist. She said I can probably hunt one down in the condemned monastery buildings here in the Highvale Outskirts. She's can be hard to follow, but she might be the only one who knows anything about the mystical happenings around here so I'll do as she asks. Maybe it will get me closer to solving the disappearances.''