about twelve o'clock
We will ride to the village , get the rifles and pistols , and then follow the road by the lake . It is now only nine o'clock ; we can be there by one easily , and reach Junin by morning . It will be perfectly safe to rest there . I suppose your guards will be relieved about twelve o'clock ? '' `` Yes , that was the time we heard them changed . '' `` They will most likely discover that you have gone then . When they find the four guards sound asleep , they are sure to unbolt the door and see if you are there , then of course they will give the alarm at once .