midnight
`` When -- where -- by whom ? '' `` It 's guesswork , that , but the fact stands -- I was dosed . You asked me to watch , and I did watch . Up to midnight that lantern on top of the trunk was n't out of my sight fifteen minutes at a time . '' `` And then ? '' questioned Bart . `` I always go over to the crossing switch shanty about twelve o'clock to eat my lunch .