How can I make this more descriptive?

“Come on,” Max's soft whisper echoed around the fort. “Watch your step and stay on guard,” he said firmly, with a hint of fear in his voice. The flame illuminated a five foot radius around them. As they walked further inward, they could see that the room wasn't that big, it reminded them of their own homes back at Pyro Village. Max raised his brows and wiggled his nose, surprised there was no smell. Though the temperature dropped significantly, since they were surrounded by ice.