That Spot — Jack London

Then, too, the message seemed so near that, instead of pulling the trigger quick, I stopped to see if I could catch the message. There it was, right before me, glimmering all around in those eyes of his. And then it was too late. I got scared. I was trembly all over, and my stomach generated a nervous palpitation that made me seasick. I just sat down and looked at the dog, and he looked at me, till I thought I was going crazy. Do you want to know what I did? I threw down the gun and ran back to camp with the fear of God in my heart. Steve laughed at me. But I notice that Steve led Spot into the woods, a week later, for the same purpose, and that Steve came back alone, and a little later Spot drifted back, too.