Percy nods along. What Peter is describing does sound like magic as far as Percy knows it. "I know some magicians," he tells the other. "They're stationed in Brooklyn. They have Houses all over the world, but I don't know where the other ones are."

He takes a thoughtful sip of his drink. "But you mentioned the galaxy. Do you know aliens? Like... actual creatures from other planets?" That's definitely one Percy hasn't run across before.