Putrid Smell
After a few taps, the headlamp came back to life and lit the way further down into the cave. Christian rubbed the dirt out of his eyes that was making it hard for him to see clearly, but soon his sight wasn’t the problem. “Do you smell that?” he said to his colleague, as he sniffed the air. “It’s gas!” exclaimed his colleague, who was further behind him that he thought. “I’m turning back!” But Christian was too excited about the prospect of a huge scientific discovery. He kept sliding down further into the cave.