I got a letter from a courier a looong time ago about giving Calcemo a Dwarven Bow of Despair. I sold the bow before I got the letter though, so don't have it. I just tried buying a dwarven bow, enchanting it with fear (the enchantment learned from disenchanting something with "of despair") and a grand soul gem, and renaming it Dwarven Bow of Despair, but I can't give it to him. When I say "I'm here about the Dwarven Bow of Despair" and he says may I see it, my only option is "Actually, I'm not sure I have it anymore." And then he just tells me to go retrieve it. >.> Is there anything I can do to complete the quest?