Leo led the way. Unlike his previous laziness, today he was full of energy despite his limp. In no time, he led me to a nearby meadow. Leo suddenly pointed to a patch of grass in the distance and shouted, "Zack, look! Is there something in that grass?" Startled, I gripped my axe tightly, thinking it might be an animal. Staring intently, I saw a black patch in the grass, as if something was hidden there. I cautiously approached it and discovered a black hole in the middle of the grass! This hole was about a meter in diameter. And it was pitch black inside. Even more startling was the fact that the hole was in a perfect oval shape with smooth edges, clearly showing signs of human work! "What is this? Could there be someone else on the island?" I was astonished when I suddenly heard a co