wraith

“Grover was sniffing the wind, looking nervous. He fished out his acorns and threw them into the sand, then played his pipes. They rearranged themselves in a pattern that made no sense to me, but Grover looked concerned.
"That's us," he said. "Those five nuts right there."
"Which one is me?" I asked.
"The little deformed one," Zoe suggested.
"Oh, shut up.”
― Rick Riordan, The Titan’s Curse

“What if it lines up like it did in the Trojan War ... Athena versus Poseidon?"
"I don't know. But I just know that I'll be fighting next to you."
"Why?"
"Because you're my friend, Seaweed Brain. Any more stupid questions?”
― Rick Riordan, The Lightning Thief

“But remember, boy, that a kind act can sometimes be as powerful as a sword.”
― Rick Riordan, The Battle of the Labyrinth

“Getting something and having the wits to use it...those are two different things.”
― Rick Riordan, The Battle of the Labyrinth