Thora

“Like water leaking through a dam," said Piper.
"Yeah," smiled Percy. "We've got a dam hole."
"What?" Piper asked.
"Nothing," he said. "Inside joke.”
― Rick Riordan, The Mark of Athena

“Hercules,huh? Percy frowned. "That guy was like the Starbucks of Ancient Greece. Everywhere you turn--there he is.”
― Rick Riordan, The Mark of Athena

“It's okay,” he said. “We're together.” He didn't say you're okay, or we're alive. After all they'd been through over the last year, he knew that the most important thing was that they were together. She loved him for saying that.”
― Rick Riordan, The Mark of Athena

“Now, come over here so I can pat you down."
"But you don't have-" Percy stopped. "Uh, sure."
He stood next to the armless statue. Terminus conducted a rigorous mental pat down.
"You seem to be clean," Terminus decided. "Do you have anything to declare?"
"Yes," Percy said. "I declare that this is stupid.”
― Rick Riordan, The Son of Neptune