"And there will probably be water," continued both together.

"Is the shaft still open?" asked Juggernaut brusquely.

"I believe so," said Walker.

"I suppose it would be possible to rig a derrick and tackle over it?"

"Yes."

They strode on a dozen paces.

"I am going down," said Juggernaut.

"I am going with you," said Walker.

"And I," said the Inspector, "am coming too."

They broke into a trot.