Nico

“Nico's smile was a bit of a winter sun breaking between snow flurries.”
― Rick Riordan, The Tower of Nero

“I am the son of Hades. I go where I wish. The darkness is my birthright.”
― Rick Riordan, The Blood of Olympus

“No,’ Nico said. ‘Getting a second life is one thing. Making it a better life, that’s the trick.’ As soon as he said it, Nico realized he could’ve been talking about himself. He decided not to bring that up.”
― Rick Riordan, The Blood of Olympus

“He looked at the silver pocketknife in his hand. An idea came to him – possibly the stupidest, craziest idea he’d had since he thought, Hey, I’ll get Percy to swim in the River Styx! He’ll love me for that!”
― Rick Riordan, The Blood of Olympus