There is a place on Oa, the central hub of the Green Lantern Corps, which serves as the ultimate source of power for all Green Lanterns.
This is the Central Power Battery, also known as the main power source.
If the lanterns of individual Green Lanterns are comparable to voltage transformers, then this structure is the main power plant.
Typically, approaching the Central Power Battery without authorization is prohibited, but today was different. With the permission of the Guardians of the Universe, Tomar-Re brought Kara to the Battery, escorted (and monitored) by several other Green Lanterns.
"The situation is dire, so we must put protocol aside for now," Tomar-Re explained briefly to Kara.
"The Guardians hope you can find answers here. This isn't just the power source for all Green Lanterns; it also stores nearly all the historical data of the Corps, including the truth you seek about 100,000 years ago."
In fact, the Green Lantern rings are incredibly versatile, functioning much like advanced computers. They can translate nearly any language in the universe (explaining why Kara, despite being new to intergalactic society, could communicate effortlessly with aliens) and enable seamless, distance-free communication between users.
More importantly, the rings allow access to the Book of Oa, a central repository of the Green Lantern Corps' history, regulations, and vital information.
In this adaptation, the Book of Oa seemed to reside within the Central Power Battery itself, much like a furnace containing both power and knowledge. By silently focusing on a specific sector or piece of information and placing their ring into the Battery, a Green Lantern could retrieve detailed data about it—planet counts, galaxy regions, cultural histories, and more.
Today, Kara needed answers far more complex. She sought the history of Krypton, the truth of the Green Lantern Corps' involvement, and the events of millennia past.
Under Tomar-Re's guidance, she reached the Central Power Battery.
The Battery was an immense structure emanating a brilliant green glow. It resembled a colossal, abstract construct with two vertical bars flanking a furnace-like opening, radiating thick, viscous green energy. This was pure willpower—a visible manifestation of the emotional spectrum, usually intangible but here concentrated into a near-physical form.
Kara inhaled deeply, her resolve unshaken. She stepped forward, raised her left hand, and extended her Green Lantern ring toward the glowing furnace. She did not hesitate; this was no time for doubt.
As her ring connected with the concentrated willpower, Kara's mind was suddenly flooded with an overwhelming stream of data. Information from 100,000 years ago surged through her consciousness—all connected to Krypton.
She saw Krypton.
100,000 years ago, Krypton was a thriving world. Despite its advanced technology, which had already allowed for interstellar exploration and colonization, Krypton was a beautiful and harmonious planet, far removed from the destruction it would face in later millennia. Its crust was stable, its climate temperate, and its natural beauty abundant.
However, even then, Krypton's sun was a red star—an ancient Fixed Star near the end of its lifecycle. Its transformation into a black hole loomed, threatening to consume the entire galaxy.
Kryptonian scientists had foreseen their planet's doom and sought ways to escape their fragile homeworld. They worked tirelessly, confident in their ability to find refuge on other planets. But tragedy struck before their efforts could come to fruition.
The Guardians of the Universe—ancient beings wielding the emotional spectrum and commanding seven Lantern Corps—discovered Krypton's plans. Viewing themselves as the galaxy's protectors, they deemed the Kryptonians' actions reckless.
What the Guardians underestimated, however, was the potential of Kryptonians under a yellow sun. The initial waves of Kryptonian explorers discovered that exposure to golden sunlight granted them immense power. Enhanced by lower gravity than their homeworld's crushing force, they became something extraordinary—virtually indomitable.
Kryptonian scientists quickly developed artificial yellow suns to empower their people, creating an army of invincible warriors.
However, they were still vulnerable to the radiation of their native red sun and the newly discovered substance known as kryptonite, rendering them powerless.
At the outset, Krypton stood no chance against the combined might of the Seven Lantern Corps. The Guardians' forces overwhelmed them, and defeat seemed inevitable.
Kara's body trembled as she absorbed the truth. Her rage flared, her cloak billowing unnaturally as emotions surged within her. She teetered on the brink of succumbing to the Red or Black Lantern Corps, fueled by fury and despair.
But the vision shifted.
To counter their weaknesses, Kryptonians turned to desperate measures, creating a terrifying bioweapon using the corpses of their fallen warriors, enhanced by yellow solar radiation. These abominations became known as Doomsday.
Two infamous bioweapons in the DC Universe are comparable in ferocity: the Parademons of Apokolips, serving as Darkseid's vanguard, and the Kryptonian Doomsday. While the Parademons were mass-produced, the Doomsday bioweapon was an unparalleled individual threat—so powerful it could defeat Superman and even challenge Darkseid.
When Krypton unleashed the Doomsday army, the Guardians were forced to abandon six of their seven Corps, leaving only the Green Lantern Corps intact but severely crippled.
Kara clenched her fists as the vision faded, leaving her alone with the glowing Battery. She had learned the truth of Krypton's ancient struggle—and its dire consequences.
The Guardians had condemned an entire civilization to stagnation and ultimate extinction, not for the greater good but to maintain their control over the universe.
Kara's path was now clear. This was no longer about survival or redemption for Krypton; it was about justice. The Guardians had taken everything from her people.
And she would make them pay.