Jewel of the Nile

It should have been a romantic dream come true-cruising along the Mediterranean aboard Jack Colton's magnificent yacht, sampling the pleasures of Monte Carlo and Europe's most glamorous nightspots. Yet lovely romance writer Joan Wilder felt something was missing-some spark of excitement, some sense of adventure. So when a handsome Arab ruler begs her to help him write his book. Joan leaps at the chance. Then-