Everybody laughed, pushed her neighbors around for a back view, and asked the sophomores if the telegram had truly been sent, and if this was the real girl's picture. So no one noticed Betty's blushes except Mary Brooks, upon whom she vowed eternal vengeance. For she remembered how one afternoon the week before, she and Mary had started from the house together, and Mary, who said she was taking her camera down-town for a new film, had dropped behind on some pretext. Betty had been sure she heard the camera click, but Mary had grinned and told her not to be so vain of her back.