Legion of Super-Heroes #290

The Great Darkness Saga - Part 1The Legion investigate a robbery at a museum when they are attacked by a mysterious assailant talking about 'darkness'. He makes off with the artifact after defeating the legion single handed. Later another thief steals, Excalibur, the sword of King Arthur from the tower of London. A mysterious figure consumes the magic in the object. In the meantime Dr Gym'll examines Lightning Lad who is incapacitated. Legion business runs as normal and Dream Girl enters the leadership election, much to her friends' shock.