Secret Origins: The Dummy: 1939: Wood and Evil
by HarveyKent 
In 1939, a dying old man is desperate to recapture his youth and save his life — so desperate that he’ll try anything. But restored life comes with a price he hadn’t counted on! Witness the never-before-told origin of the Dummy, one of the most sinister villains from the Golden Age!
Secret Society of Super-Villains: Mirror to the Soul
by Martin Maenza 
The truth about how Sam Scudder overcame certain death during the Crisis on Infinite Earths is revealed as an unwelcome visitor drops into the Sinister Citadel! Will Mirror Master’s bargain with the devil spell doom for the Secret Society of Super-Villains?
The Atom and Doctor Mid-Nite: 1943: The Methuselah Menace
by HarveyKent 
A mysterious Indian curse causes students at Calvin College to age to death in seconds! It’s a race against the clock as the Atom and Doctor Mid-Nite try to find the mysterious agent of death afoot in academia! But is there more to the Methuselah Menace than meets the eye?
Secret Origins: The Huntress and the Sportsmaster: The Games People Play
by Martin Maenza, partially adapted from DC Super-Stars #10 by Bob Rozakis and Dick Dillin, and Batman Family #7 by Elliot S! Maggin and Curt Swan 
The history and origin of crime’s infamous couple, the Huntress and the Sportsmaster, is finally revealed! But is there too much water under the bridge for the so-called Mr. and Mrs. Menace to continue their relationship? Dr. Harleen Quinzel is determined to find out! Guest starring Batgirl and Robin, and several other big-name super-heroes and super-villains!
Justice Society of America: 1978: Watch the Skies
by GernotCarl, JSAGL, HarveyKent, JSA Jim, the Golden Age Flash and GDL 629 19136 
The old adage, “No good deed goes unpunished,” proves true as the other-dimensional Neptunians come to Earth for vengeance against Doctor Mid-Nite, who once saved the Neptunians from a plague, inadvertently also changing the balance of power on that world. Can the Justice Society of America protect the Earth from the full force of Neptune’s mighty space armada, especially when the Ultra-Humanite adds his/her own brand of villainy to the mix?
Adam Blake: 1955: Blake’s Pilot
by CSyphrett 
When Hop Harrigan’s old flame goes missing along with a valuable prototype airplane, everyone but Hop thinks she left for Mexico to sell the prototype to the Soviets. Naturally, Hop recruits his fellow adventurers to help with the search, despite Adam Blake himself being unavailable. But will Hop be able to face Gerry Nolan when he finally does find her?
Justice Society of America: 1944: The Incredible Mister Horrific
by JSAGL
He came out of nowhere to defeat the JSA! He toppled the mighty Atom! Drew the curtain on Doctor Mid-Nite! Plucked Hawkman’s wings! Short-circuited Johnny’s T-bolt! Burnt out the Starman! And proved to Wonder Woman that chivalry is dead! Who is the incredible Mister Horrific?
Secret Origins: 1982: Secret Origin of Flecha Verde
by PaladinLgt, with Doc Quantum
Decades after the Green Arrow of Mexico retired from crime-fighting, a new heroic archer has arisen to take Flecha Verde’s place as one of Mexico’s greatest heroes alongside other members of the Superamigos! But what led Colonel Ricardo Martinez to don the modernized costume of the legendary heroic archer? Finally, the events behind the creation of the modern-day Flecha Verde are revealed!
Hourman: Ralphie
by Starsky Hutch 76 
When Rick Tyler and Beth Chapel — alias Surge and Midnight of Infinity Inc. — find themselves in an unexpected predicament, they would tell you their situation is complicated. But to Hourman’s oldest son Ralphie Tyler, who still sees the world through the eyes of a child, the solution is fairly simple.
Adam Blake: 1955: The Three Blakes
by CSyphrett
All the Adam Blake of Earth-X wants is pieces of his other-earthly counterparts, but can Adam Blake of Earth-Two and his newfound brothers-in-arms stop a robotic Nazi counterpart from wreaking havoc on themselves and then their worlds? Guest starring Captain Comet of Earth-One and Atom Blake of Earth-S!
Secret Origins: The Books of Magic: 1951: Founding Fathers
by CSyphrett, with Martin Maenza
When five mystically based heroes from five different parallel Earths come together to stop a threat to each of their worlds, they little expect what may come from the adventure. Could a small piece of Hell, even properly controlled, make a good environment for a school of magic? Featuring Captain Marvel of Earth-S, Doctor Occult of Earth-Two, Doctor Mist of Earth-One, Margo the Magician of Earth-X, and Yarko the Great of Earth-Four!
Justice Society of America: Crisis Unfolding
by Libbylawrence
The Justice Society of America is warned about the end of the Earth, but as they respond to prevent the planet’s destruction, are their actions actually contributing to the end of the world? Can even the world’s most powerful team overcome an inhuman creature made from elements of their mightiest members and remnants of the deadly energies of the Crisis on Infinite Earths?
The Atom: 1941: Star Struck
by Libbylawrence 
When Al Pratt wins a trip to Hollywood, his resemblance to a certain short, red-headed star of the silver screen lands him in hot water! Despite secretly being the heroic Atom, Al has never had much luck with girls in Calvin City, but in Hollywood his luck changes even as peril follows!
Superman and Batman: 1958: Suspicious Minds
by HarveyKent 
It is 1958, and tensions threaten to tear the World’s Best team apart when the Daily Star is attacked by someone who wants to stop the printing of a special issue! At the top of Clark Kent’s list of suspects: Selina Wayne! Can the friendship of Superman and Batman survive even if the former Catwoman is innocent?
Power Girl: A Lesson Before Dying
by Libbylawrence 
Power Girl becomes the helpless prisoner of a new foe, Doctor Kryptonite, who robs the girl of steel of her freedom, dignity, and ultimately her life. Can the ghost of an old friend help Kara Zor-L find her way back to life?