A/N: What if Sally had taken Poseidon's advice, and brought Percy to camp when he was young (for his own safety off course)? Particularly as an infant. What does Chiron do with really young unclaimed demigods?
Chiron looked down at the small child he held in his arms. He hated taking in young demigods. He found from experience that the ones that grew up without positive mortal, the term being relative, interaction in their formative years tended to be dangerous. It wasn't that they weren't good kids or trying to do the right thing, but they tended to be more reckless. Need more guidance.
He had found this one at the top of the hill, his mother crying. "I…I can't protect him. I can't keep him safe. I saw a monster, in the hospital. I'm worried. I just want what's best for him," she had said, "Please. Take care of him. His name is Percy, like the hero; Perseus. Please, take him, before I change my mind and end up hurting him." She kissed his forehead and gently handed the sleeping bundle to the horse-man. She turned and quickly went down the hill, hoping to make the separation easier on both of them.
The child, Perseus, only Perseus now as his mother had seemingly forgotten to tell him the last name, was to small to discern any real features that he could use to guess who his father was. He was strong, Chiron could tell that he was strong. Definitely a child of a Olympian, not one of the minor gods or spirits.
The Centaur turned and trotted towards the big house. The baby he held was a few days, maybe a week old, if Chiron's estimate was correct. He would require intensive care and bottle feeding by hand for months, and that was a job Chiron could say he wasn't prepared to hand over to a bunch of moody teenagers with superpowers. He had always taken care of the infants before. He just hoped that the baby wouldn't be colicky, Chiron would have a rough month if he was.
As they passed the stream, the baby started to stir, but did not cry. Perseus opened his eyes, revealing their sea green irises. A fleeting suspicion passed through Chiron's mind, quickly buried by feelings of fear and doubt. Regardless of his sire, Chiron knew that Perseus would be a great hero one day.
Yes, this is all there is, so don't even bother asking. The whole story will just titter out into unplanned hopelessness if I continue.