“What did you see?” he called from the bow where he released the anchor. Frannie and Tessa were already at the stern, waiting for the Francesca to slide back over the mysterious treasure. “Unsure,” Frannie said, a hand on her brow to shield her eyes. “It looked man-made. It was sticking up funny.” “I saw a flash of color, maybe gold,” Tessa said and hurried below to grab their masks and fins. Seconds later—splash!—the girls had hurled themselves off the back of the boat. “Good luck,”
