Here is another story from yours truly. Warning, characters may be OOC.
Disclaimer: I don't own Percy Jackson and the Olympians and the X-men.
Prologue
Two months before our favourite hero Percy Jackson was born, Poseidon fell in love with another mortal Martha Fox and sired a child. But unfortunately, the child was incredibly weak due to the fact that he was born prematurely and was missing a lung and his heart. The doctors said that it was a miracle that the baby had survived the birth, but wouldn't make it through the night.
Poseidon wouldn't let his son die and immediately took his son before the Olympian council having being told by the Fates that his son would play a great role in future, although not in the great prophesy.
"What is this brother" Zeus asked as he watched his brother carry in the baby.
"Please brother, my son needs to be saved, I have been told by the Fates that he will be needed in future" Poseidon pleaded, explaining the baby's predicament.
"So be it" Zeus said, to everyone's surprise "Athena, what can you do for the baby?"
"Well, I have been experimenting on the affects of induced mutation on human bodies. I could use him. Hephaestus could replace the boy's heart and lung and enhance his weak bones" Athena said, eyeing her experiment.
"Thank you" Poseidon said, handing the baby to Athena who walked out of the throne room, Hephaestus following close behind her.
From there, the baby had been taken to Athena's lab where his bones had been coated with Adamantine, making them virtually indestructible. After which Hephaestus had given him a heart and his lung.
After that was over, they proceeded to the mutation. The baby was to be taken to her son Xavier's Academy for children that have been mutated. But much to Athena's surprise, the mutation did more than enhance the boy's strength, it also made his skin unbreakable and enabled the boy to excrete the Adamantine from his pores, coating him in it as self defence. His body was also able to absorb energy and store it or bring it out tenfold. It was also able to adapt to survive for example, when underwater, he grows gills and webbed hands and feet. She also added the DNA of some of Xavier's students, turning the boy into the ultimate hero. He could sprout angel wings, and thanks to Xavier, he was also a telepath. He could also extend the adamantine out of his knuckles crating three claw-like bones, sharp enough to cut through anything and the adamantine was also non magnetic. His agility, reflexes and prowess had also been magnified.
As soon as the enhancements were made, the boy was taken to Xavier's school to train until he was ready to go to camp half-blood. He was named Xavier Jnr by Athena's son and thus, the ultimate weapon was created.
Hope you liked it, and don't forget to review.
