midnight
`` I have been thinking that same thing . Let 's try it . '' Naturally their attention had been attracted to a small window , which afforded light and ventilation for the room , but which was about ten feet from the floor . Tied hands and feet , as they were , the boys tried many times to carry out their plan without avail , until it must have been near midnight when Plum said : `` It 's mighty aggravating . There must be lights on the streets , for I 've seen their flash . '' `` Let 's try once more . If I lie down perhaps you can get on my neck , after which I believe I can raise you to the window . ''