ten o'clock
`` Then I 'll go , '' Bart went on . The other boys did not dispute his right , as he was the best paddler . It seemed that the time would never come for the attempt to be made . In the darkness and rain the boys waited , for Frank had said it would not be safe to try until ten o'clock . At that hour the night watch went on , and the sanitarium was more quiet . `` Let 's get the ladder out and lay it along the edge of the grass plot , '' suggested Ned . `` No one can see us , and it will be something to do . ''