Sitting on the altar in the Fairy Castle’s Chapel is a gold monstrance used in churches to display an object. Inside this monstrance is said to be a sliver of the true cross. The monstrance was designed by New York jeweler David Webb and the sliver of the true cross was a gift to Colleen Moore from Clare Booth Luce (1903–1987) a playwright, congresswoman, ambassador to Rome, and wife of Henry Luce (founder of Time magazine) in memory of Luce’s daughter who had been killed in a car accident. The Chapel of the Fairy Castle is decorated throughout with inlaid ivory embellished with symbolic events of the Old Testament, designed by Bayard de Volo. In the center of the design are the Ten Commandments hewn into the stone tablets. The gold and ivory Chapel organ was carved in Italy and has over a hundred keys, each barely a sixteenth of an inch wide, and it even plays music through an electrical system via remote control. Finally, the ceiling is decorated from the illuminations of the Book of Kells, a medieval illuminated manuscript preserved in Dublin, Ireland.