I walked into my house in solitude and I couldn't find mehrunes razor I thought I lost it at some point or might have stored it in house and there it was floating in the middle of the room in proud spire manor! Weird
When U do this mission the first time u turn I just ran out of white run and ran around for a min or 2 this is the only time u will just turn any other time u have control over when u turn. I waited to do this mission until I was like level 55 for pretty much the same reason didn't no if I wanted to b a ware wolf but it didn't really affect anything I just blew through the rest of the companions quests after this one and st the end you arenot a ware wolf anymore!
I use illusion for invisibility that's pretty much it. Alteration as far as the wards go the only time I've ever used them is when the soul gems shoot fire at you and the ward worked pretty good other that that I am not really impressed with wards I would never use them against and enemy in combat! Also I did the alteration ritual and you get a pretty cool spell dragon skin that makes u immune to all physical combat for like 30 sec