A long wait, while the rumbling came closer, still closer; then, in the distance, a light appeared, shining from a side of the tunnel.

A clanging noise, followed by clattering sounds, as though of steel rails hitting against each other.

Finally the tramming once more,--and the light approached.
Into view came an ore car, and behind it loomed the great form of Taylor Bill as he pushed it along.

Straight to the pile of ore he came, unhooked the front of the tram, tripped it and piled the contents of the car on top of the dump which already rested there.

With that, carbide pointing the way, he turned back, pushing the tram before him.
Harry crept to his feet.
"We 've got to follow!" he whispered.