Alexandria, Va. -- Once upon a lifetime ago, Shelly Pennefather was the sweetest of shooting stars, an All-American at Villanova and the 1987 national player of the year. Since 1991, she has lived here, in the Poor Clare Monastery, at the end of a quiet cul-de-sac in a very modest middle-class neighborhood. Pennefather has taken her vows and the name Sister Rose Marie of the Queen of Angels. She renounced her worldly life, including a six-figure salary as a professional basketball star in Japan, to answer her true calling: To serve God as a cloistered Poor Clare nun.