"Better close the stone shack," said Kenneth.
But as he spoke, a vast shape, another giant frog, appeared in the entrance of the shaft.
"Get some dynamite and fuses," ordered Professor Gurlone quietly. "Come on Kenneth, and you, Maget, if you care to risk your life. You need not do so unless you wish to."
Bravely, the older man led the way towards the croaking monster. The ground shook at its approach. It was heading for the bodies of the dead frog and polywog, bent on a search for food. Evidently these vast creatures were forced to prey upon one another for sustenance.
he rifles spoke, and Maget and the professor, in their black suits, protected by the lead-cloth and helmets from the rays, advanced. They poured bullet after bullet into the frog.
Kenneth came running to join them, and Espinosa stood by. Kenneth had dynamite bombs with fuses ready for lighting and throwing. He also brought more ammunition, and the three armed themselves to the teeth.
It was well after midnight when they started into the mine. They knew they must act quickly or retreat, for the bellowing sounded nearer and nearer the surface of the earth.
Each man carried big, powerful flashlights, and the three entered the mine shaft and walked across the seething slugs into the bowels of the earth.