He turned and moved quickly toward the entrance to the ice cave.

He turned to the men who had entered the ice cave behind him.

"The force field, or whatever it is that we saw in the ice cave," she said.

He raised his eyes to the roof of the ice cave.

"I'm going to take her down to the ice cave."

Which meant they were inside an ice cave and not under the Earth's crust.

They had begun walking slowly back to the ice cave.

The young inventor and the others walked about among the ice caves.

If you like ice caves, don't miss the world's largest.

The temperature was already a hundred degrees above what it had been in the ice cave.