And now, sis. Transportation for the Hunters, you say? Good timing. I was just about ready to roll." These demigods will also need a ride," Artemis said, pointing to us. "Some of Chiron's campers." No problem!" Apollo checked us out. "Let's see... Thalia, right? I've heard all about you.". Thalia blushed. "Hi, Lord Apollo." Zues's girl. yes? Makes you my half sister. Used to be a tree didn't you? Glad your back. I hate it when pretty girls get turned into trees. Man, I remeber one time-
Rick Riordan (2007). “The Titan's curse”