midnight
His face was pale and determined . After coming in from the restaurant he had changed his tuxedo for the more comfortable house coat . Nothing called him away that particular Sunday evening , and no one was likely to disturb him . Ferris , his man-servant , had taken his usual Sunday off and would not return until midnight . The apartment was still as the grave . It was so high above the street that not a sound reached up from the noisy Broadway below . Underwood liked the quiet so that he could think , and he was thinking hard .