A/N: This is my first ever fanfic, something I decided to do after reading a couple of Game of Thrones crossovers while having zero knowledge of the show. I'm writing my disclaimer now and being done with it for the remainder of my story.
Disclaimer: All characters originally created by Rick Riordan are his. The Percy Jackson Universe does not and will not include this work as canon.
The old man chuckled maliciously as he observed the young man through the orb in front of him. He watched as the man played with his children, happily laughing as he chased them through the yard. It would seem that the raven haired father had gotten the life he had always wanted, with healthy young children and a beautiful wife watching happily as he "tripped" and his kids jumped on top of him. Their playful chase immediately descended into a tickle fight that left the children breathless from laughter.
What they did not know, but the old man did, was what awaited them. Or, more specifically, what awaited the father. For the old man was no man, no, he was an ancient being, one who felt himself fading. And the man he watched, well let's just say he had no desire to let him live this perfect life. For the man had done something that could never be forgiven: he had killed the old being's family.
As punishment, the ancient being chose to strip the man of his family and loved ones, but leave him the memories. The sea green eyed man would forever torment in a time when no one spoke his language and all he could remember was the life he once had. The old primordial knew his time was not long for this world, and punishing this man for his actions would take much, if not all, of what he had left. To him, it was worth it.
"You have earned none of what you have. You took what little I had left in this world and banished them to the depths of Tartarus, where I will never again see them. Now, I take from you." The being rasped out these words as he began manipulating time around him. The man began to shake, and a worried look came over the faces of his family. The shaking became more violent, and the children quickly ran to their mother.
"Mommy, what's happening?" the little girl asked.
"I don't know sweetie, but I'm sure Daddy will be fine," the mother said shakily. But the father would not be fine, as the shaking only grew more and more violent before the man suddenly disappeared.
The ancient being smiled at this, and tracked the progress of the man. It was taking more out of him than he had thought it would, but it was working. With a slight gasp he realized that he didn't have the power to send the man as far back in time as he wanted. To compensate, he began to affect the age of the man, slowly turning him into a child. Once he had reached infancy, the old man felt his power give and he was forced to release his hold on the former man. He looked over at the orb where he had been observing the family and took a small amount of satisfaction in what he saw. For the woman was crying, holding her children close as she knew this time her husband wasn't coming back.
"That should teach you not to mess with another man's family," the old man whispered. "Live long and suffer, Percy Jackson." With that, the being faded into nothingness, leaving behind a world without their greatest hero, and a family without their father.
The process was not as simple on Percy's end. Instead of the immediate changes the ancient being saw, Percy was forced to live through every year the man sent him back in. He was stuck, unable to escape the time pocket that held him captive. Surrounded by nothingness, Percy felt his sanity slowly wither away. Nightmares became full on hallucinations, and the passage of time began to mean nothing to him. This was the torture of being sent back hundreds of years, forced to physically live the days without aging. In fact, Percy almost felt himself growing younger.
And he was. Slowly but surely, Percy began to shrink and the peak physical condition he was once in drifted away. Through it all, he never once forgot the love of his family, and deeply missed them. It was his separation from them that affected him most, and he vowed to himself to one day see them again.
Long into his journey, he heard a loud pop and saw someone stagger out of the nothingness that was there before. He was convinced it was a hallucination, but he had never actually heard anything that wasn't his own tears and cries for help. At this point, he had become a little boy again, able to speak but not at the level an adult would, despite retaining all of the memories of his past.
Percy blinked frantically, silently praying to the gods that the person in front of him wouldn't disappear like all of the others had. Several minutes of blinking later, Percy found the person to still be there and his heart filled with hope.
"Hello?" his voice cracked, "who are you?" Percy stared intently at the person hoping they would answer. When they turned, Percy saw the face of a man with a swirling vortex of colors instead of a body. He wore an immaculately tailored suit and was clearly only choosing to be in this form to make Percy feel more comfortable. Not that Percy minded, as any company was good at this point. The being regarded him closely, noticing the state he was in. Percy looked at the man's eyes and found that they simply did not exist, as though the creature in front of him did not need them to see the world around him.
"My, you look worse than I had imagined," the being said softly. "Perhaps I can help." Percy stared blankly at his new company and the man took that as a sign of acceptance. "There's not much I can do, Chronos used every bit of his power to send you back and it took me this long to even reach you. But I will try my best."
The being began to make a circular motion with his hands and a small sphere of energy started to form. The bright white sphere grew in size to be about the size of a tennis ball, before the being flung it at Percy. Percy grew wide-eyed at this and attempted to escape, but it was no use. The ball hit him squarely in the chest and the young Percy felt himself transported to yet another place. He closed his eyes at the impact and when he opened them he saw a pair of brown eyes looking down lovingly at him. He recognized the look, as his mother had given him that look many times before. It was a look of love, one that a mother carries for her children. But why was he seeing it from this woman? And why did her face appear so large?
It did not take him long to discover the reasons for this, as he realized he had little control over his movement and could not form words. Slowly, his new reality sunk in. The woman who was looking down at him was not some massive giant, Percy was just really small. In helping him escape his hellish captivity, the being had completed the transformation. Percy was now a baby.
A/N: This will not be a crossover, GoT crossovers were just my inspiration. My story will take place in a world of my creation, so there will be world building throughout the next few chapters.