midnight
By seven o'clock , if the weather permitted , masked figures in twos , threes and groups might be seen parading the campus . Eight o'clock saw the beginning of the grand march . Unmasking took place at half-past nine . Then the dance continued merrily until midnight . Hurrying from Science Hall after her last recitation of the afternoon , Marjorie crossed the campus at a swift run . She was anxious to be early at the lavatory for a shower before the girls began to arrive there in numbers . Coming hastily into the hall she glanced at the bulletin board .