midnight
`` Wal , '' said Arizona , as they stood leaning against the bars of the biggest corral , `` guess ther 's goin ' to be a night-guard ? '' `` Yes . These boys are smart enough lads , it seems . We 'll let them take two hours about up to midnight You and I will do the rest . '' `` An ' the hull lot of us 'll sleep round the corrals ? '' `` That 's it . '' `` An ' the hosses ? ''