nine o'clock
There were mysterious whisperings and gigglings . Groups kept forming in corners apart , to disperse casually and innocently on the approach of some person in authority . An air of expectancy permeated each of the houses . Morning school at Wrykyn started at nine o'clock . At that hour there was a call-over in each of the form-rooms . After call-over the forms proceeded to the Great Hall for prayers . A strangely desolate feeling was in the air at nine o'clock on the Friday morning .