I had gone to take a leak next to a tree, and Geoff went to see what had been ahead of us. A few minutes passed after I had finished, I thought Geoff had found something. He wasn't anywhere in sight, I called out to him and never got a response. Not too far in the distance I noticed a cave, as I advanced closer to the cave, I smelt smoke. I thought Geoff had started a fire somewhere, but I couldn't see the smoke anywhere. "Geoff! NO!"