If walking into a fairy tale sounds like just what you need right now, may we suggest visiting “They Went Whistling” at Castleton University’s Christine Price Gallery? For years, the South Burlington artist has been gathering materials from Vermont forests to construct her magical garments, which exude both earthiness and elements of high fashion. The sumptuous, sculptural “After Midnight,” for example, seems a tribute to classic Hollywood glamour with its feathered capelet and fluffy gown of dried botanicals. Viewers can expect plenty more gasp-worthy flights of fantasy.