Isabella

“I had a crush on Percy," Nico spat. "That's the truth. That's the big secret.”
― Rick Riordan, The House of Hades

“This is so cool!" Nico said, jumping up and down in the driver's seat. "Is this really the sun? I thought Helios and Selene were the sun and moon gods. How come sometimes it's them and sometimes it's you and Artemis?"
"Downsizing," Apollo said. "The Romans started it. They couldn't afford all those temple sacrifices, so they laid off Helios and Selene and folded their duties into our job descriptions. My sis got the moon. I got the sun. It was pretty annoying at first, but at least I got this cool car."
"But how does it work?" Nico asked. "I thought the sun was a big fiery ball of gas!"
Apollo chuckled and ruffled Nico's hair. "That rumor probably got started because Artemis used to call me a big fiery ball of gas.”
― Rick Riordan, The Titan’s Curse

“Nico strode forward. The enemy army fell back before him like he radiated death, which of course he did.
Through the face guard of his skull-shaped helmet, he smiled. "Got your message. Is it too late to join the party?"
"Son of Hades." Kronos spit on the ground. "Do you love death so much you wish to experience it?"
"Your death," Nico said, "would be great for me."
"I'm immortal, you fool! I have escaped Tartarus. You have no business here, and no chance to live."
Nico drew his sword-three feet of wicked sharp Stygian iron, black as a nightmare. "I don't agree.”
― Rick Riordan, The Last Olympian

“I … what? Why would you want a son of Hades in the same room with people you’re trying to heal? Why would anyone want that?’
‘You can’t help out a friend? Maybe cut bandages? Bring me a soda or a snack? Or just a simple How’s it going, Will? You don’t think I could stand to see a friendly face?’
‘What … my face?’
The words simply didn’t make sense together: Friendly face. Nico di Angelo.”
― Rick Riordan, The Blood of Olympus