Julia

“[Jason] faltered when he looked at Leo, who was mimicking taking notes with an air pencil.
“Go on, Professor Grace!” he said, wide-eyed. “I wanna get an A on the test.”
― Rick Riordan, The House of Hades

“Once she was gone, I knelt next to Annabeth and felt her forehead. She was still burning up.
"You're cute when you're worried," she muttered. "Your eyebrows get all scrunched together."
"You are not going to die while I owe you a favor," I said. "Why did you take that knife?"
"You would've done the same for me."
It was true. I guess we both knew it. Still, I felt like somebody was poking my heart with a cold metal rod.”
― Rick Riordan, The Last Olympian

“Correct." Kekrops sounded bitter, like he regretted his decision. "My people were the original Athenians--the gemini."
"Like your zodiac sign?" Percy asked. "I'm a Leo."
"No, stupid," Leo said. "I'm a Leo. You're a Percy.”
― Rick Riordan, The Blood of Olympus

“Can you surf really well, then?"
I looked at Grover, who was trying hard not to laugh.
"Jeez, Nico," I said. "I've never really tried."
He went on asking questions. Did I fight a lot with Thalia, since she was a daughter of Zeus? (I didn't answer that one.) If Annabeth's mother was Athena, the goddess of wisdom, then why didn't Annabeth know better than to fall off a cliff? (I tried not to strangle Nico for asking that one.) Was Annabeth my girlfriend? (At this point, I was ready to stick the kid in a meat-flavored sack and throw him to the wolves.)”
― Rick Riordan