Winter Opera concludes its 12th season with the opera "Norma." An opening performance Friday March 8 at 7:30 will be followed by a closing performance Sunday March 10 at 3:00. Both performances are at the Skip Viragh Center for the Arts. The druid priestess Norma has had an illicit affair with Pollione, a Roman officer in the enemy forces occupying her land, and she has had two children by him. Pollione has grown tired of Norma and taken up with the younger priestess Adalgisa. Meanwhile, Norma's people cry out for rebellion against the occupying forces. Will Norma take revenge on Pollione? And will her people discover her secret?