Entering Mike Rathbun’s Urgency, a monumental installation of sculptural wooden forms, is like stumbling down a rabbit hole. This bizarre world recalls the magical darkness of the Brothers Grimm and the wondrous imagination of Maurice Sendek’s Where the Wild Things Are. As visitors move into this strange environment, they are swallowed up by its monumental scale and dwarfed by a menacing forest of thorns that appear to burst out of the gallery’s ceiling.