“This is not the real cave, is it?" asked Rachel.
"Can't be," said Jerry.
"Must be," said Dick. "Sign says so."
What a cave! Iron fencing all around it, a sign saying to keep out, even barbed wire along the top of the fence. They couldn't see the entrance to the cave. They couldn't tell how deep into the earth and rock it went. They couldn't tell whether this cave was like the cave in Tom Sawyer or what it was like...
"In old times, it was better," said Rachel. "They did not have cages around things.”