Location: Nullspace – Beyond the Realms
Beneath the bones of the multiverse, where light had never touched and even the Old Gods dared not tread, something woke.
Not born.
Not created.
Not summoned.
It simply… rose.
The void trembled as fractured echoes of dead timelines stitched themselves into a form. Not flesh. Not spirit. A paradox given shape. The antithesis of everything Harry Potter represented.
He had no heart. No soul. No identity.
Only purpose.
"To unmake the Guardian. To burn the balance. To destroy the first spark and the final flame."
They called him:
The Eternal Nemesis.
His existence was the answer to the multiverse's survival. A cruel balancing act by fate itself. For every Guardian, there must be a Shadow. For every Camelot, a Cataclysm.
He was the devourer of timelines.
The slayer of destinies.
The final breath before oblivion.
He had no face, yet could wear any.
No voice, yet whispered across dimensions.
No body, yet moved like a storm across reality.
And now, he knew Harry lived.
Camelot – A Warning from Beyond
Harry stood in the Council Chamber when the air shattered like glass.
A rift tore through space—not a portal, but a scar. From it came Uatu the Watcher, eyes wide, ancient cloak torn, face filled with something Harry had never seen in him before.
Terror.
"He's awake."
Harry stepped forward, the Hallows humming in warning. "Who?"
"The one you were never meant to face. The Eternal Nemesis. The Fail-Safe of the Void. The last echo of a broken fate."
Luna gasped, her eyes suddenly swirling with visions. "He walks in backward time. He eats light. He… he doesn't want to rule. He wants nothing to exist."
"He is what comes after the end," Uatu whispered. "And he is coming for you, Guardian."
Sirius stepped in, armed and ready. "Let him come."
"No," Harry said, voice like thunder. "We go to him."
The True Past Revealed
To understand the Nemesis, Harry dove into the Deep Archives of Camelot—records sealed even to Merlin. With Jean Grey's Phoenix spark guiding him, and Wanda shielding his mind from temporal insanity, he unlocked the truth.
Long ago, before the Old Gods rose, the multiverse had one original Guardian—a being made of pure potential. He kept balance without favor or bias.
But as reality expanded and emotions were born, the first Guardian fractured. His rage at being forced to maintain order alone created a split. That fracture became conscious.
That fracture became the Nemesis.
And now, as Harry had claimed every mantle, he stood as the Guardian the first one was meant to be. Whole. Unified. Loved.
That made him a threat to the Void's oldest shadow.
The First Encounter
In the realm of broken stars, Camelot's elite strike team arrived. Thor, Wanda, Percy, Luna, Logan, and Jean. At their center, Harry—cloaked in fire, lightning, shadow, and soul.
The battlefield was silent.
Until he arrived.
The Nemesis wore Harry's face. Twisted. Empty-eyed. A mockery of all he loved.
"You defy oblivion," it whispered.
Harry's magic burned. "I am its end."
The first strike shattered stars.
Reality bled.
And for the first time since becoming Guardian, Harry bled too.
The Prophecy Unfolds
The Nemesis could not be killed—only sealed by a Guardian who had died three times. And Harry had already fulfilled that.
But sealing him meant using Excalibur Phoenix—the sword forged from Merlin's staff, Arthur's blade, and Phoenix fire. Doing so would shatter Harry's immortality… and bind him to the multiverse forever.
A living barrier between everything and nothing.
Sirius, trembling, begged him to find another way.
"There is no other way," Harry said.
Luna kissed his forehead. "You are love made real. Don't forget that."
The Battle Ends… or Begins?
In a final clash, Harry drove Excalibur Phoenix through the heart of the Nemesis.
Reality screamed.
The Nemesis writhed, not in pain—but in acceptance.
"I will always return. You cannot guard forever."
Harry smiled. "I won't be alone."
The sword burned, sealing the Nemesis into the Timelock Vault beneath Camelot's core.
The price: Harry could no longer leave the multiverse.
But peace returned.
For now.
Epilogue: A Candle in the Dark
Back in Camelot, children once again trained in spellcraft and starlore. Heroes taught. Worlds visited. Hope reborn.
And in the center of it all, Harry stood—no longer aging. No longer mortal.
Not just Guardian.
But the Flame That Remembers.
And somewhere, deep beneath the vaults, the Nemesis waited.
Whispering.
"One day, even the stars will forget you…"
And Harry whispered back:
"Then I'll teach them again."