ten o'clock
Mounting it , he found that his head was on a level with the roof , and he could easily draw himself up ; but he did not do so at once . `` What are you waiting for , Flint ? '' asked Christy , rather impatiently . `` If I leave the box where it is , the guard will see where we have gone when they inspect the prison at ten o'clock , '' replied Flint . `` That 's so ; I did not have the box in my plan , and that would tell the guard where to look for us , '' replied Christy . `` We must make a line , and haul it up after you . '' `` Here are two big handkerchiefs , '' added Flint , as he removed his neck-cloth , and passed up his pocket handkerchief with it .