Dianna met Neptune in New York at a festival and got into a conversation, eventually he asked Neptune out on a date and after a few dates, a month later she found out she was pregnant but couldn't find Neptune so she left to a house she owned in the mountains to raise Will.
He grew up with his mother in the middle of mountains beside a sparkling blue lake, his mother from a young age taught him nearly everything to know, from Spanish to how to shoot a gun, and he loved his mother very much, but being as social as he was, he yearned for company his age and when he was nine, and his mother on his many business trips leaving him by himself, he was left because there was nothing nearby, no wild animals, and to far from any civilization for thieves but yet Will found a mansion only an hour’s walk from his house, the house consisted of two twins, both girls, their mother was dead and mother rarely home and maids took care of them. He spied on them every opportunity he had, just out of curiosity, he hid in the surround forest whenever his mother was out, but he always made sure he finished the work his mother left him before he did so.
Eventually one of the twins, named Sophie found him when the two were playing hide and seek and Will introduced himself and showed her where he lived, and Sophie warmed up to him. He was introduced to Ella, the other twin and the three became inseparable, and the maids eventually found them but let it go as they were kids.
On his tenth birthday he was with his mother learning about the Greek Gods, when two people kicked the door open, the door smashed on the hinges and crashed into the room with guns, they introduced themselves as the Darkwood’s right hand, but didn't explain on what the Darkwood was but they looked human but were huge and were dressed with huge trench coats and wide brimmed hats, and Will was unable to see their features, Will's mother pushed Will into the hallway knowing exactly who they were, screaming for Will to run which will did, as he was faithful and loyal to his mother so he did exactly that but he heard him scream and the gun shot and the blood splattering on the walls.
For the next hour Will wandered the forest, hoping to get away from the men and he still doesn't know if they did follow him, but he was unable to think of what to do now, he was in mourning already, already accepting his parents death. Finally he got the conclusion to go to Sophie and Ella but when he arrived he found Sophie in tears and Ella shot in the temple, he stole food from the well stocked kitchen and without a good bye to Sophie ran thinking it was probably for the best that she stays behind.
Shell shocked he ran from the house and was found by Lupa, where he trained and then a month later he found a girl named Juliet Mathews who he saved from monsters but he had to go camp Jupiter before she knew anything else about him.