four o’clock
`` Now , comrades , '' commanded the chief , with a flourish of his sword , `` get to bed quickly . I 'll call you at four o'clock ; we 'll then start to chase the monarch of the mountains . '' The Sons of the Vikings scrambled into their bunks with great despatch ; and though their beds consisted of pine twigs , covered with a coarse sheet , and a bat of straw for a pillow , they fell asleep without rocking , and slept more soundly than if they had rested on silken bolsters filled with eiderdown . Wolf-in-the-Temple was as good as his word , and waked them promptly at four o'clock ; and their first task , after having filled their knapsacks with provisions , was to tie Brumle-Knute 's hands and feet with the most cunning slip-knots , which would tighten more , the more he struggled to unloose them . Ironbeard , who had served a year before the mast , was the contriver of this daring enterprise ; and he did it so cleverly that Brumle-Knute never suspected that his liberty was being interfered with . He snorted a little and rubbed imaginary cobwebs from his face ; but soon lapsed again into a deep , snoring unconsciousness . The faces of the Sons of the Vikings grew very serious as they started out on this dangerous expedition .