The original superhero team-up, Justice Society of America is Earth's mightiest squad of defenders whose dynamic ranks include Powergirl, Dr. Mid-Nite, Mr. Terrific, Dr. Fate and star of TV's Justice League - Hawkgirl! When Obsidian, the darkness-controlling son of Green Lantern, teams up with the mind-twisting Eclipso and hyper-powerful wizard Mordru, the Justice Society face their greatest threat to date...as the villains' combined power forces the moon from its orbit, plunging Earth into a permanent total eclipse! Now, with Earth's citizens rapidly being converted into cannon fodder for the villains' armies, it will take an incredible array of superheroes to stop them...if they can! Collecting: JSA 46-55