midnight
The boys turned in early , Billy and Lathrop to their tent and old Sikaso to the rough shelter he had contrived for himself and which he declared was far more comfortable than any tent . Like a wild beast the savage old warrior disliked to have anything approaching a roof over him . It appeared to savor too much of a trap of some kind . Billy might have been asleep five hours or so and it was approaching midnight when he heard a noise outside the tent door and a second later old Sikaso announced his presence by a whispered : `` Awake , Four-eyes , there is danger . '' `` What do you mean , Sikaso , '' demanded the half asleep reporter , `` danger to our friends ? '' `` No ; to us , and here and soon , '' was the disquieting response , `` arouse your friend . We have no time to lose . ''