Anti-Matter Universe

The Anti-Matter Universe is a universe parallel to the one inhabited by Hal Jordan. It was conquered by the Anti-Monitor and slowly consumed. As the stars died one by one, the universe was in danger of losing all life. One planet managed to delay its doom for a few months. A man named Duke Nigel invented a ray that sent the Anti-Monitor to another universe. Just as the planet's star died out, Nigel, Steam Lantern, Lady Catherine, and Hal Jordan successfully transported the planet from the Anti-Matter Universe to Jordan's home universe.