three
o'clock
But now she was shivering , although she had wrapped herself in her coarse green and red shawl , and tapped her feet on the bare floor to keep them warm ; she was hungry , too ; the noon lunch had left her unsatisfied , for she had given her cake to Rie Blauvelt in return for a splendid Northern Spy , and had munched the apple and eaten her two sandwiches wishing all the time for more . Leaving the work on her slate unfinished , she had dived into the depths of her home-made satchel and discovered two crumbs of molasses cake . That was an hour ago . School had closed at three o'clock to-day because it was Friday and she had been nearly two hours writing nervously on her slate or standing at the blackboard making hurried figures . For the first time in her life Marjorie West had been `` kept in . '' And that `` Lucy '' book hidden in her desk was the cause of it ; she had taken it out for just one delicious moment , and the moment had extended itself into an hour and a half , and the spelling lesson was unlearned and the three hard examples in complex fractions unworked . She had not been ignorant of what the penalty would be .