Don't talk to my sister that way." Nico said. His voice quivered, but I was impressed that he had the guts to say anything at all. — Percy

Nico di Angelo ran up to me with a big grin on his face.
"Percy, this is awesome!" His blue-feathered bronze helmet was falling in his eyes, and his breastplate was about six sizes too big. I wondered if there was any way I'd looked that ridiculous when I'd first arrived.

Oo!" Nico raised his hand. "What about Dr. Thorn? That was awesome how you shot him
with arrows! Is he dead?

I (Percy) set Nico on guard duty with Beckendorf and the Stoll brothers, figuring he'd be safely out of the way.
...
"What's happening?" Nico demanded, trying to climb up next to me.

Bianca di Angelo shivered. "That explains Nico, you remember last summer, those guys
who tried to attack us in the alley in DC?"
"And that bus driver," Nico said. "The one with the ram's horns. I *told* you that was real.

Who wants us?" Bianca demanded. "Because if you think you'll get a ransom, you're wrong. We don't have any family. Nico and I—" Her voice broke a little. "We've got no one but each other.