Contrary to popular belief, the quest you get from Mae'Var is random. It's not too hard, though it requires a lot of patience. You have to wait until the two guards near the safe are off duty; at that time, there will be a priest patrolling the area. Wait until he goes over to the other side of the temple, so that there's no NPCs on-screen. If you open the safe and swipe the statuette when there's nobody around, the alarm won't get sounded.
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