Hazel walked in cabin 13, only to be met with her brother's latest obsession.
You see, Nico was a hobby jumper; One day, he's read 13 books in less than 24 hours, the next he's training for 13 hours strait.
Today's hobby; making green and red paper boxes.
"Hey, Hazel, wanna see a magic trick?" He asked, holding out one of the small boxes to her.
"Why not?" Hazel grinned.
Nico gave a small grin of his own and started to unfold the box, making a rose.
By the end of the day, the rest of the seven, Nico himself, Will, and Reyna were in the Hades' cabin, with around 1,000 paper boxes and roses around them.
They never did understand why Chiron walked in and started helping them use up the green, red, purple, pink, and black origami paper.