Dainty had observed the look which passed between her husband and Schwatka, but did not understand its meaning.

She had not perceived the diamond in Donald’s hand, for she had been picking her way to the entrance of the tunnel, and had approached it with her eyes cast down, until her companion came to a standstill.

She understood the meaning of that look later. How often a cloud passes over us surcharged with power, to which we are indifferent, until it is revealed to us by some lightning flash of memory.

The Kafir had immediately taken hold of his car, and wheeled it into an inner chamber, but not before Dainty had noted that he was a Fingo boy, who often came to the house on errands for Donald. The beads, earrings, and ornaments with which the natives adorn themselves, and also the style of wearing the hair, distinguish one tribe of Kafirs from another; and these peculiarities were well known to Dainty.

As Miss Darcy joined them, they returned to the shaft, entered the elevator, and soon arrived at the Company’s office.

The day’s “wash-up” of the diamonds was next seen, and the assorting of them on the “sorting” table (which is very agreeable work to those who are looking for a prize—and find it, but a little tedious if the labours result in failure) was gone through, and some fine brilliants found.

It was about five o’clock in the afternoon on their return home that they strolled through the diamond market, a street of one-story houses built of corrugated iron, with the interiors very simply finished. They visited the offices of several diamond buyers, representing Parisian, English, Viennese, and Holland houses in this branch of trade. They were of all nations, those of Jewish origin predominating, and the visitors were received with the utmost courtesy.

The contents of their safes, stored with precious stones awaiting the departure of the English mail, packets of gems containing from ten to one hundred carats weight, were freely exhibited; and Kate almost wished that she too might enter the fascinating trade of buying and selling diamonds.

Proceeding on their way to the hotel, they passed through the market square which was strewn with the merchandise of the country. It was difficult to say whether the mine they had recently left was even as interesting as the exhibit of wealth lying before them, brought from a great distance in the interior; that delightful unknown country, with its lions, leopards, ivory, and impregnable strongholds of savage chiefs and adventurous traders.

The life of this latter class is as interesting to contemplate as are the fruits of their labour and skill. They go into the strange country where the ’Tse fly stings their horses to death, and where they must fight the still more deadly fevers. If they survive and manage to crawl out yellow and wan, the fervid life still holds out its charms for them, and they return to it again with the same eagerness; the voice of adventure drowns the admonitory tones of ease and safety.