I am level 10 in the quest line, the last quest completed was "Sudul Eht Nioj," and the postmoogle is gone. I have read many issues regarding the postmoogle disappearing before the Twack-a-Mole quest, which requires you to complete some side quests, but this is not the case. I have completed the side quests and the Twack a Mole quest. I need to start the quest "Of Sibling and Side-whiskers." I have looked ahead at the npc's that are involved in the next several quests, none of which are involved in any side quests. Any ideas on how to proceed?