The story of how a crippled young shepherd boy's life changes forever when he sees an amazing star. When three foreign kings following the star in their search for a wondrous child encounter Amahl and his mother, the result is a timeless and inspiring message of how faith, charity, unselfish love and good deeds can work miracles. Performances are 2 p.m. Dec. 1 and 2 at  Harold Washington Library Center, Cindy Pritzker Auditorium, 400 S. State St., Chicago.