The pit opened up a very thick seam of the whitest and most beautiful marble.

I know another like it in Natal.

But by whom it had been worked I cannot say; not by natives, that is certain, though the builders of these kraals had condescended to borrow the shape of native huts for their model.

By the way, the only relic of those builders that I ever saw was a highly finished bronze pick-axe which Stella had found one day in the quarry.
After we had examined this quarry we climbed the slope of the hill till we came to the mouth of the ancient mines which were situated in a gorge.

I believe them to have been silver mines.