“Spellbinding,” “bewitching,” and “ghostly” barely begin to describe Endre Penovác's otherworldly cats. Each one is rendered in the artist's distinctive watercolor-and-ink technique with a unique fadeaway style that has garnered him international renown. Endre's paintings are an act of faith and magic. Like these elusive cats, watercolor is a difficult medium to wrangle, but by diluting pigments with water to create tiny rivers of monochromatic tones, Endre instinctively strokes these furry forms into shape, giving his mysterious felines a haunting life of their own, even as they seem to be vanishing before our eyes