"I've never seen Meesery sae tractable," Mac said in amazement, patting the trembling nostrils of the leading camel. "I wonder what's gaun to happen?"

"We're all ready," sung out Phil blithely, and I gave the usual signal for the advance.

"Gee up, Meesery," grunted Mac.

"Aince mair, Slavery," implored Stewart, and we set out for the mountain at an unusually lively pace. The forenoon passed without event, and so speedy had been our progress that our midday halt was made amongst the straggling timber belt which feathered the base of the mountain. We lost no time in making ready for the ascent, and within an hour after our arrival we had hobbled the camels and were starting out on our journey of discovery.

For the first half-hour we made fairly good headway through the straggling belt of eucalypti covering the lower slopes, then we emerged on a treeless, boulder-strewn expanse, on which the sun scintillated with burning intensity. Over this scorched area we clambered as best we could. The sharp rubble cut through our boots, and the glistening rocks, hot as a fiery furnace, burnt our clutching hands. Our mountain exploration was surely becoming less of a picnic than we had anticipated. Directly above, a solid mass of basalt reared its head, gaunt and bare, but when we came to the edge of the glass-like cap, we hesitated—we might as well have attempted to cross a field of molten metal. From this point various dry channels tore down the face of the hill, radiating outwards into the plain. They were so silted up with rock fragments and ironsand as to be scarcely perceptible, but Phil's trained eye at once noted their significance.

"Ages ago," said he, "those gullies were filled with rushing torrents, which goes to prove that a crater lake existed on the top of the mountain."

He walked over to one of the ancient beds and scraped among the drift of black sand conglomeration. At once several water-worn specimens of quartzite were uncovered, and of these over fifty per cent. bore the characteristic markings of the ruby.

"Fill your pockets with these, Mac," he said quietly. "They should be worth considerably more than their weight in gold."

Prolonged travelling in Western Australia does not tend to develop enthusiasm, and the extraordinary find so unexpectedly made was greeted by no extravagant manifestations of delight. Relief rather than joy was ours at that moment, for in one important sense at least our quest seemed surely ended.

"If we can find water in the vicinity we'll camp at the foot of the hill for a few days, boys," I announced with much satisfaction. "Meanwhile we had better explore a little further, and see what the country looks like from the summit."