“Accompanying the strange muffled sound inside the flume every few moments, there came a different sound, as if something sharp was being driven into the wood for a hold. Mike figured out that the inside of the flume had been worn so slippery with the flood of waters and sand or pebbles passing through it in torrents, that it was necessary to use steel-pointed staffs and creepers to help anyone in the dangerous ascent.

“As soon as Mike felt convinced that someone was trying a new trick to gain possession of the mine, he crept back to the camp-fire and told the men of the sounds inside the flume. They laughed immoderately at Mike, and declared that he was going mad because of his prohibition since his employers left him in charge.

“But Mike ordered a few of his most trustworthy miners to guard the cave in front, while the others were sent over the top of the range to keep watch at the opposite entrance to the mine. You’ll remember, Polly, that that was the side where the pit cut the cave in half. We bridged that chasm, you know, and used the short-cut entrance quite often, although the ore was brought out through Choko’s Find.

“Mike then selected several of his brawniest fighters and very quietly led the way to the opening of the flume where the water-gate was located. As they could travel faster on the ground than the men creeping up inside the slippery wooden tube, Mike and his companions reached the water-gate before they heard the suspicious sounds from within the flume.

“He signalled his men to keep absolutely quiet, and then crept out on the lintel of the gate and got a firm purchase on the lever. No one dreamed of his purpose at the moment, and he suddenly seemed to reconsider his plan, for he crept back again and had just reached the trio of curious men, when a sigh of relief was distinctly heard from inside the flume.

“Then a whispering was heard, but not understood. In a few moments a grating sound as if some sharp tool was being used. Mike surmised that they were trying to break a way through the wooden door by which to get out.

“Without further delay, then, Mike threw open the lid in the top of the flume and commanded the trespassers to come forth.

“There was no reply from within, and not a sound was heard after Mike opened the lid. So he called again: ‘Ef yoh no come us wash riber fru dis pipe.’

“Still no reply or sound was heard, so Mike winked at his companions, and gave a fictitious order: ‘Frow water gate open!’

“‘Stop! Wait a minute!’ shouted a frightened voice from the flume.