“Mother, Mother, I am so happy!” whispered the girl, burying her face in the lap of the faded, tired-looking woman who, with back turned to the shrill intrusive light, was sitting in the one arm-chair that their dingy sitting-room contained. “I am so happy!” she repeated, “and you must be happy, too!” Mrs. Vane winced and put her thin, bismuth-whitened hands on her daughter’s head. “Happy!” she echoed, “I am only happy, Sibyl, when I see you act. You must not think of anything but your acting. Mr. Isaacs has been v…