“It’s a dead-sure thing!” cried Harry. “We were given an electric shock. When the man touched the wall with his hand, he turned on the current.”
“I believe it.”
“But how did the shock reach us?”
“Don’t know. I saw no wires.”
“Nor I.”
“There must have been wires.”
“I presume so.”
“Well, where are we now?”
They looked around, but there was nothing about their surroundings that they remembered having seen before.
“We are not in front of the cave,” said Frank.