Of course it is extremely difficult to get any detailed information about these new competitors for the sovereignty of the globe. No eye-witnesses of their activity, except for such glimpses as Holroyd's, have survived the encounter. The most extraordinary legends of their prowess and capacity are in circulation in the region of the Upper Amazon, and grow daily as the steady advance of the invader stimulates men's imaginations through their fears. These strange little creatures are credited not only with the use of implements and a knowledge of fire and metals and with organised feats of engineering that stagger our northern minds—unused as we are to such feats as that of the Saübas of Rio de Janeiro, who in 1841 drove a tunnel under the Parahyba where it is as wide as the Thames at London Bridge—but with an organised and detailed method of record and communication analogous to our books. So far their action has been a steady progressive settlement, involving the flight or slaughter of every human being in the new areas they invade. They are increasing rapidly in numbers, and Holroyd at least is firmly convinced that they will finally dispossess man over the whole of tropical South America.
And why should they stop at tropical South America?
Well, there they are, anyhow. By 1911 or thereabouts, if they go on as they are going, they ought to strike the Capuarana Extension Railway, and force themselves upon the attention of the European capitalist.
By 1920 they will be half-way down the Amazon. I fix 1950 or '60 at the latest for the discovery of Europe.
