All of these characters belong to our Uncle Rick Riordan, as you know. I'm pretty sure the idea of this chapter does, too.
Chapter 3
Percy slowly stepped inside, and he heard noises. Like an arcade. He turned the corner, and there, was all the arcade games he could ever think of. It was bright and colorful and noisy, and he was so taken aback, Percy forgot all about his mom, who was scared it of her mind.
He didn't know that she had started putting up missing signs everywhere, or that she'd informed the police.
After all, Percy was only seven years old. He was too distracted by all the fun he was having. Very distracted. He never noticed the bright sign that said in large letters: Lotus Hotel.
Percy slept in a large bed that was very comfortable, all his clothes got washed magically, and he had all the food he wanted. He never questioned it. Percy only thought an hour had passed.
He was wrong.
One morning, Percy woke up and ate breakfast like always. He'd long since forgotten about his mother, the real world, the beach, and Annabeth. He wolfed down his usual breakfast, blue pancakes with a side of milk and blue cookies. He always got maple syrup on himself, just like that morning at Annabeth's house. But he'd forgotten that too. Then he went and played his video games, stopped for lunch, went back to playing games, then ate dinner and slept. This was his daily routine and he never questioned it or changed it.
He still never noticed the sign.
But that day was different. Percy had never gone out the door, and he'd never wanted to. Today, everything wasn't how is usually was. He wanted to change things and go outside. He wanted to see what was past that door.
And so he did.
When he stepped out, everything was different. His whole world changed. He noticed that he was grown more. His hands were larger, and when he touched his face, it felt different. Rougher. His hair was shaggy, and he was definitely taller.
Percy stumbled down the hall until he found a mirror. He saw then how much he had changed. He wasn't sure how that had happened in only an hour.
It was only when he walked outside the hotel and saw a building broadcasting the date and time digitally that he realized he spent more than an hour in there.
It was now August 18, 2009. He'd gone in the room in the year 2000.
Sorry for the kind of short chapter.