Bob shut off the power and, in the silence which ensued, the boys heard a faint call.
“Help! Help! Help!”
“It’s over to the left,” said Ned.
“No; it’s to the right, up on top of that hill,” announced Jerry.
They all listened intently, and it was evident that Jerry was correct. The cries could be heard a little more plainly now.
“Help! Hurry up and help!” called the voice. “I’m down in a hole!”
The boys jumped from the auto and ran to the top of the hill. At the summit they found an abandoned mine shaft. Leaning over this they heard groans issuing from it, and more cries for aid.
“Who’s there?” asked Jerry.
“Professor Uriah Snodgrass, A. M., Ph.D., F. R. G. S., B. A. and A. B. H.”