“The demigods of Camp Half-Blood have already been working with Camp Jupiter,” Percy said. “We just didn’t realize it. During the Titan War last summer, while you were attacking Mount Othrys, we were defending Mount Olympus in Manhattan. I fought Kronos myself.” Reyna backed up, almost tripping over her toga. “You… what?” “I know it’s hard to believe,” Percy said. “But I think I’ve earned your trust. I’m on your side. Hazel and Frank—I’m sure they’re meant to go with me on this quest. The other four are on their way from Camp Half-Blood right now. One of them is Jason Grace, your old praetor.”