Purchase the house in Skingrad and the upgrades for it. You should have a deer head mounted in the wall. Jump on it and retrieve the note. It will say that the man who is writing it is being sent to the prison, but left a clue to his treasure for his loved one. However, she never found it. The answer to the riddle is an hourglass. Go in the basement of the house and find the hourglass at the top of a support beam with the garlic hanging from it. Pick it up and you should get about seven flawless gems and the Ring Of The Grey.