Rocks and particles rained down upon their bodies with sickening force.
But the desperate men neither heard nor felt now.
A sudden darkness had settled over them and they lay motionless and lifeless.
A mighty explosion had rent the cave from end to end.
IN A LIVING TOMB.
It might have been hours for aught they knew that they had lain there.
Frank was the first to regain consciousness. He heard someone groan and called out demanding whose voice it was.