The criminal specialist who had come with Dr. Warner was a somewhat more urbane and even dapper figure than he had appeared when clutching the railings and craning his neck into the garden. He even looked comparatively young when he took his hat off, having fair hair parted in the middle and carefully curled on each side, and lively movements, especially of the hands. He had a dandified monocle slung round his neck by a broad black ribbon, and a big bow tie, as if a big American moth had alighted on him. His dress and gestures were bright enough for a boy’s; it was only when you looked at the fish-bone face that you beheld something acrid and old. His manners were excellent, though hardly English, and he had two half-conscious tricks by which people who only met him once remembered him. One was a trick of closing his eyes when he wished to be particularly polite; the other was one of lifting his joined thumb and forefinger in the air as if holding a pinch of snuff, when he was hesitating or hovering over a word. But those who were longer in his company tended to forget these oddities in the stream of his quaint and solemn conversation and really singular views.