I felt quite as tired as did Mike, but I sat up till my eyes began to close and my head to droop, and I could not for the life of me tell what I was looking at.  I had just sense enough left to lie down alongside Mike, when I was almost directly asleep.  I do not think I ever slept more soundly in my life than I did on that occasion.  So thoroughly wearied out was I, that I forgot all about the fire raging within a few hundred yards of us; or prowling wolves, or Indians, or rattlesnakes, which might have made their holes in the bank.