Three sisters live in a castle high among Erin's green hills. Fair and Brown go to church every Sunday wearing new dresses and leave their beautiful younger sister, Trembling, behind to cook. Then an old henwife comes to visit one Sunday morning, offering to repay Trembling for her kindness in the past. Before she knows it, Trembling is dressed in a lily-white gown and shamrock-green shoes, riding a milk-white mare to church. For the next two Sundays, Trembling stands at the church door in a new and more splendid gown -- a vision of loveliness to turn the head of every prince from far and wide . . . With her airy landscapes and funny detail work, Jude Daly has fashioned a charming variation on the old story.