He stood and scanned the island—bleach-white dunes, blankets of grass, and boulders encrusted with salt like frosting. “Festus said there was Celestial bronze close by, but I’m not sure where—”
“That way.” Hazel pointed up the beach. “About five hundred yards.”
“How do you—?”
“Precious metals,” Hazel said. “It’s a Pluto thing.”
Leo remembered what she’d said about gold being easy. “Handy talent. Lead the way, Miss Metal Detector.”

The Mark of Athena, Chapter VI