That afternoon picks and spades were hard at work on the wedge of gravel between its rocky walls. A cradle made of sheet iron was filled and taken down to the stream which passed the camp down below, and water was allowed to flow into it while Steve and Tom rocked it. Thar were anxious faces peering into the depths of the cradle, when at length the contents had been sufficiently washed. The water was allowed to drain away, big pieces of rock and stone were carefully removed, and finally a layer of sand was come upon. It glistened in the sun.

"Hooroo!" shouted Tom. "That aer gold. Not a heap of it, but gold; and tidy rich, I should say, seein' it comes from the face of the gravel. Now we'll take another sample."

They worked till night fell, and again on the following day. Choosing the very centre of the wedge of gravel, they burrowed some three yards into it, testing samples from time to time, and finding a richer deposit of gold dust in the cradle the deeper they went. Then, with a shout of satisfaction, Jacob unearthed a nugget the size of a bean.

"There ain't no need ter go farther," said Tom, when the night had fallen, and they were seated round the camp fire. "Thar aer work here fer the crowd of us ter take us a hull year. Now we has to engineer the business properly, fer it stands ter reason nine men, nor ninety, can't dig all that stuff away. It would take years. We have ter make some other sorter arrangement, and fer that we've the apparatus in the cart. What we'll do is this. We'll tap the river 'way up thar. Me and Steve measured it up yesterday: it aer jest twenty-eight yards from the edge, and out of line of the old stream. Perhaps it was formed only lately; but it carries heaps of water and will give us all we want. We'll lead it down through a wooden sluice, take the water ter an iron nozzle, and wash the dirt out into a wooden trough below. Now, mates, we want wood first of all, and some of us'll have ter get off ter the nearest sawmill ter buy and fetch it. T'others can fix the camp while they're gone, and get ter work diggin' the new channel up thar."

The whole plan of operations was quickly agreed upon, and promptly, on the following morning, Jacob and three of his mates unloaded the wagon, and went off with a full team to the sawmill, some twenty miles away. The others clambered to the top of the cliff, and for three days laboured at digging a trench three feet wide and as many deep. They brought it from the bank of the stream mentioned by Tom which ran across the height above within reach of the edge, to the point where one of the rocky walls that had once enclosed the stream cropped into the open. Then they searched for a bed of clay, and finding some, puddled it with water till it was thin enough for their purpose, when they smeared it over the sides and bottom of the channel they had dug.

"It'll dry hard by to-morrow," said Tom; "then we'll give it another coat. It'll keep the water from washin' stones down into the nozzle and blockin' it. Jack, reckon the time's come fer yer anvil."

For the week following Jack found his hands filled. Up at cockcrow in the morning, he donned his leathern apron, and set his fire going. Then his hammer fell and clinked musically as he forged stout iron bands, which were to support the wooden framing his friends were constructing. It cost a great deal of hard labour to bring all their arrangements to a satisfactory completion; but when the task was finished they had a channel completed above, with a sluice by means of which they could allow water to enter at will. Another blocked the stream which they were tapping, just below their channel, thus giving them an ample head of water. The other end of the channel, where it ended at the edge of the cliff, was completely boxed in with boards, held together with heavy forgings, and from this point the water poured down a long, square wooden pipe, strengthened in the same manner. At the very end the stream was led into a huge iron pipe, which got smaller and smaller, till it eventually presented a six-inch orifice, while the last six feet were capable of some amount of movement, whereby the course of the jet could be deflected.

"A man couldn't stand before it," said Tom, surveying the jet when all was ready. "The force of water'll be sich that ef we was ter close the jet it'd bust the wooden pipe above. As it is, thar'll be a stream comin' from that 'ere nozzle that'll eat into the gravel quicker than the hull lot of us, and it'll wash piles of dirt down into the catches we have made. Ter-morrer we start in right away at the real business."

It had been no easy matter to arrange their catches below the point where the water was to play upon the cliff and gravel. But Steve was a knowing fellow, and had insisted that the jet should be brought as low as possible.

"So as ter undermine the rest of the stuff," he explained. "Then it'll fall in easy."