a
quarter past six
Now , first of all , the thing must have been done between Friday evening and Saturday morning ; and since the school-room door is generally locked soon after school , it was probably done in the short interval between six and a quarter past . I shall now examine some witnesses . '' The first boy called upon was Pietrie , who deposed , that on Friday evening , when he left the room , having been detained a few minutes , the only boy remaining in it was Williams . Carter , the school-servant , was then sent for , and deposed , that he had met Master Williams hastily running out of the room , when he went at a quarter past six to lock the door . Examined by Gibson . -- `` Was any boy in the room when you did lock the door ? '' `` No one . ''