A hesitant, pleading call followed her, but she wouldn't hear it. Pursuit and continuation of the scene, with or without another specious semblance of apology and reconciliation such as had terminated their previous passage-at-arms, was out of the question; the corridor was lively with young women in gayest plumage, fluttering to and from the dressing-rooms, and Sally was among them even before she remembered to reassume her mask. At the head of the main staircase she paused, searching narrowly the shifting groupings of the animated scene disclosed by the wide reception-hall. She was looking for Queen Elizabeth's imperious ruff, anxious to find and keep in the shadow of that great lady's sovereign presence; and she was also looking for the leather-banded sombrero of the cowboy and the skull-cap of Harlequin, with a concern keen to avoid those gentlemen. Considerably to her surprise, still more to her disappointment, not even the first of these was in evidence (as Sally had made sure Mrs. Gosnold would be) waiting to welcome her guests just within the doorway to the porte-cochere. None the less, the lady must be found, and that without delay; the envelope, with its blank enclosure half crushed in Sally's hand, was an ever-present reminder of her duty first to herself, secondly to her employer. If she had written nothing, and but for Mrs. Standish would have kept her counsel till the last minute, the latter's threat of denunciation had lent the temper of the girl another complexion altogether; as Sally saw it, she no longer had any choice other than to find Mrs. Gosnold as quickly as possible and make complete the revelation of last night's doings. And her mind was fixed to this, with a cast of angry pertinacity that would prove far from easy to oppose or even to modify; whether or not the hostess wished it, she must suffer herself to be informed immediately and completely. Threading a swift way in and out among the masks clustered upon the broad staircase in groups of twos and threes, laughing, chattering and watching the restless play of life and colour in the hall, she gained the floor and then the letter-box, near the door where she had thought to find her employer. A distrustful scrutiny of the near-by masks failed to single out one of those she had marked and memorised in the boudoir, and without detecting any overt interest in her actions, she slipped her blameless message into the box, then turned back and, steadfast to her purpose, made her way forward through the throng to the veranda.