Shazam’s Squadron of Justice: Mystery of the Missing Day
by Libbylawrence 
For years the Marvel Family have wondered what happened to them on the day before they and others were caught in Sivana’s Suspendium trap. Now a time traveler arrives from the future, explaining the mystery of the missing day and seeking help from America’s other greatest heroes! Witness the secret origin of Shazam’s Squadron of Justice when that fabled team unites once more to stop Zotan the King of Time from changing history as they know it! Introducing time traveler Steffi Swift!
Secret Origins: Palette: 1959: Murder in the Morning
by Dan Swanson 
When artist Alex Silverstone witnesses a murder in San Francisco’s Chinatown, she wishes for the life of her that she could remember the killer’s face. But when a newfound power to create projections manifests, allowing her to replay the images from her memory, it’s too strange to describe to the police. Will she have to take matters into her own hands as the new heroine known as Palette to capture the killer?
All-Star: 1969: Aquarius Redux
by Dan Swanson, partially adapted from Justice League of America #73-74 by Dennis O’Neil and Dick Dillin 
After the Earth disappears, a handful of strange visitors from other planets — Kell Orr of Xenon and his twin son and daughter Larre and Karre, Tharka the Superwoman, and Regor of Uuz — each independently investigate Earth’s disappearance. Yet are they prepared for the cause of Earth’s disappearance, the living star called Aquarius? Having just battled both the JSA and the JLA, Aquarius managed to trick the heroes into believing he was destroyed, when he actually fled into space with Starman’s cosmic rod. But Starman and Green Lantern guess the eons-old villain’s deception and track him into deep space. When the heroes of Earth rendezvous with the super-stars of space, will even their combined powers be enough to stop Aquarius?
Superman: 1952: The Second Superman
by Dan Swanson, adapted from Superman #119 by Edmund Hamilton and Wayne Boring 
The planet Krypton, that planet of Superman’s birth, perished years ago in a catastrophe. But now, in the vast realms of the universe, there looms up a world that is a near-exact double of perished Krypton. Given a rare opportunity to learn about the Krypton-like planet Xenon, he switches places with his twin from Xenon. But while the young Xenonian Kell Orr plays the part of Superman on Earth, Superman soon discovers the terrible truth that the world of Xenon is doomed, presenting him with the greatest challenge of his life. Can the Man of Steel tamper with mysterious cosmic forces and save the world that was Krypton’s twin before it’s too late?
Showcase: Tharka the Superwoman: 1969: Invaders from Earth
by Dan Swanson 
Original film footage from Tharka the Superwoman’s famous trip to Earth from her home planet of Zor years earlier was stolen — but why? Tharka learns the reason two years later, when her arch-nemesis Doctor Computeer declares herself Empress of Zor and forces Tharka to battle two super-powered foes from Earth — Captain Challenge and Muscleman! Can Tharka outwit her enemy and save her world before it’s too late?
Showcase: Regor of Uuz: 1969: The Menace of Bantor
by Dan Swanson, partially adapted from Superman #57, by Edmond Hamilton and Wayne Boring
When giant robots from another world come to the planet Uuz for the rare and valuable mineral potassium, the only one standing in their way is the great hero, Regor. But as it becomes all too evident, this is a ruse concocted by Bantor, who holds the hero’s friends hostage. Can Regor put a stop to his arch-enemy’s plans without letting his friends get hurt in the process?
Ace of Space: 1944: Ace Egan, P.O.W.
by Drivtaan 
Captured by the Nazis, Lieutenant Frank “Ace” Egan is sent to Germany’s toughest stalag. When the Allied prisoners led by Colonel Hogan discover that the newest man in the barracks is really the Ace of Space, Hogan’s heroes come up with a plan to break him out of Stalag 13, even if it means shutting down their secret espionage operation. But when the mysterious double agent known as Doppelgänger becomes involved, will he or she turn out to be help or a hindrance?
Mary Marvel and Atom Blake: Magic and Demons and Ghouls, Oh My!
by Dan Swanson, with Doc Quantum 
As the last student left behind on Halloween at the Grimoire Academy of Applied Knowledge, Atom Blake the Boy Wizard is expecting nothing but the peace and quiet he needs to complete an overdue assignment. But when the demons Blaze and Satanus suddenly invade the island in search of a prize, Atom must call in some help in the form of Mary Marvel and the Lieutenant Mary Marvels, the world’s mightiest girls!
Zing the Queen of Quick: 1961: Go West, Young Woman
by Dan Swanson
Zing the Queen of Quick is hired to steal a very rare and powerful object by a mysterious employer in exchange for two million dollars! But this super-villainess with super-speed powers soon discovers that getting rich quick carries its own set of problems! Guest starring Captain Midnight, Tom Atomic, and Colonel Tony Spinelli, commander of the Chicago Police Super-Villain Apprehension Team!
Secret Origins: Miss Music: 1959: Muskrat Creek Confidential
by Dan Swanson
Tammi Paige, gymnastics star of Muskrat Creek, Wisconsin, is preparing for a big show to entertain the whole town! But not everyone is happy about it. When a girl rival and a spurned boyfriend plot revenge, will Tammi end up humiliated before everyone, or will this be the start of Miss Music’s heroic career?
Ace of Space: 1944: Prelude to a Storm
by Drivtaan, partially adapted from the Ace of Space story in Feature Comics #38 by H. Weston Taylor and Harry Campbell
After Ace Egan encounters an alien who gives him an opportunity to be a hero, he uses a powerful belt to become the nine-foot-tall Ace of Space. But when Ace takes a mission as a special agent of the U.S. Army Air Corps behind enemy lines, has the giant hero finally met his match? And what horrors might be unleashed when the secret of his mighty powers falls into the hands of the Nazis?
The Blue Beetle: 1939: Death Rides on Horseback
by an unknown author, story from The Blue Beetle #1 (Winter 1939-1940) 
The hand of a killer hovered over a frightened city, and policemen strode their beats in the shadow of death, until the Blue Beetle took a horseback ride in Central Park!
The Green Mask: 1940: The Harried Hoodlums
by Edward Young, story from The Green Mask #1 (Summer, 1940) 
The crime-lord called the Wizard publicly challenges the modern Robin Hood known as the Green Mask. But when the members of his gang begin to disappear, one by one, will he live to regret it?
Super Squad: 1962: Super Sisters of the Caribbean
by Dan Swanson 
The women of the Super Squad take a girls only vacation in the Caribbean, where they expect nothing but rest and relaxation. Instead, the Super Sisters experience another kind of vacation when they encounter the ghost of a long-dead pirate named Anamaria Saldana, and fight against the fearsome Gr’bash, the goddess of watery doom!
Super Squad: 1961: Origin of the Super Squad
by Dan Swanson, with Immortalwildcat and Drivtaan
An alien invasion strikes America, terrifying entire cities with an onslaught of robots! But why are they targeting only those cities protected by super-heroes? Watch as a group of heroes save the world by joining together as the greatest super-team of the 1960s — the Super Squad! Featuring Master Man, Shiva, Kali, Red Rocket, Tom Atomic, Lady Victory, Quadrechaun, Palette, and Miss Music, and introducing Oxide and Majique!