about nine o'clock
The boys soon got together over the plan , and Jack was given plenty of suggestions to perfect it . He made up a number of sample notes , and then , being satisfied , he announced : `` Now I 'm going to start in . Just hang around , you fellows , and see what happens . '' It was about nine o'clock , but as it was the night before the last day of school , hardly any of the teachers or the pupils had thought of going to bed . Jack went to Professor Garlach 's room . He found the instructor busy packing up his books preparatory to the vacation . `` Ach !