about one o'clock
`` Jest tew be on the safe side , '' he explained . `` We must de doubly cautious now , '' warned Mr. Conroyal , when they made ready for bed , `` and keep somebody on guard night and day all the time ; for now that we have found the secret of Crooked Arm Gulch them devils are likely to be down upon us at the first unguarded moment . We will put four men on guard again to-night . Rex , you and Dill and Bud and his father can stand guard for the first half of the night ; and you can call Ham and Frank and Thure and me to relieve you about one o'clock . Now , get to your stations and we will get to our blankets . Good night , everybody , '' and he began rolling himself up in his blanket . An example that all except the guards followed very speedily .