Crime Syndicate of America: The Secret Society of Super-Heroes
by HarveyKent 
After so many years of the Crime Syndicate terrorizing Earth-Three, Alexander Luthor has had enough. Reasoning that heroic counterparts of Earth-One and Earth-Two villains must exist on Earth-Three, Luthor seeks them out and builds a Secret Society of Super-Heroes. But when the Syndicate learns of the existence of several new super-heroes, they respond by adding new super-villains to their team. Will the novice heroes of the Secret Society have what it takes to beat the bad guys? Featuring the debut of the super-heroes known as the Clown, Yellow Flame, the Lynx, and Doctor Shadow, and the super-villains known as Doctor Chaos, Sundown, Deadeye, and Rubberneck.
Crime Syndicate of America: Earth-Three Remembered
by Libbylawrence, with Doc Quantum
For the past year the Lawless League has reigned as Earth’s conquerors, with no one strong enough to oppose them! As Alexander Luthor and Brainiac strive to find a way to free their world, the members of the Crime Syndicate of America slowly but surely begin to remember their former lives! The world waits in anticipation for the Crime Syndicate to have its final showdown with the Lawless League, but who will emerge the victor? Introducing Owlman’s teen partner Raven, as well as two new members of the Crime Syndicate: Microbe and the Martian Murderer!
Crime Syndicate of America: The Forgotten Earth
by Libbylawrence, with Doc Quantum
The Crime Syndicate, Alexander Luthor, and the entire world of Earth-Three died at the beginning of the Crisis on Infinite Earths — or did they? Luthor awakes to find that the antimatter universe has somehow absorbed the world of Earth-Three, but that’s the least of his worries when his power suit becomes depleted of energy. And when a new Lawless League attacks the world and aims to conquer it, will Luthor have to free the Crime Syndicate of America in order to stop one menace with another? Featuring the debut of Luthor’s psychic sister Lena Luthor and his android assistant Brainiac!
Justice League of America: 1984: Crisis of the Kryptonite Criminals
by HarveyKent 
The Kryptonite Man and Ultraman of Earth-Three, two of Superman’s old foes, have that glowing green metal of kryptonite in common. But it’s not until Brainiac brilliantly puts them together that they are able to take on not only the Man of Steel but two other members of the Justice League of America!
Superman Family: Recovery
by Starsky Hutch 76 
After Mr. Mxyzptlk dropped Argo City on Metropolis, Superman was left with a deadly case of green kryptonite poisoning. Will he survive? With a little help from his friends he just might. But to make it happen Superwoman and the Supergirl from the future must recover the fabled Sword of Superman.