Great-Uncle Merry, coming back towards the car from the Grey House, had suddenly stopped in his tracks in the middle of the road. He was gazing down at the sea; and she realised that he had caught sight of the yacht. What startled her was the expression on his face. Standing there like a craggy towering statue, he was frowning, fierce and intense, almost as if he were looking and listening with senses other than his eyes and ears. He could never look frightened, she thought, but this was the nearest thing to it that she had ever seen. Cautious, startled, alarmed . . . what was the matter with him? Was there something strange about the yacht? Then