As the calendar turns, the crisp October winds bode well for this year’s hunting season. But before the bugle sounds, Sister Jane takes a scenic drive up the Blue Ridge Mountains for a board meeting at the Museum of Hounds and Hunting. Brimming with colorful stories and mementos from hunts of yore, the mansion is plunged into mystery when a venerable hunting horn is stolen right out of its case. The only clue, on a left-behind cell phone, is what seems to be a “selfie” video of the horn’s original owner, Wesley Carruthers — deceased since 1954.