There were two letters and both were for Bobs. One was a bulging missive from her Long Island friend, Dick De Laney, but it was at the other that the girl stared as though in uncomprehending amazement. The cause of her very evident astonishment was the printed return address in the upper left-hand corner. It was "Fourth Avenue Branch, Burns Detective Agency." Then she glanced, still puzzled, at her own name, which was written, not typed.