A fortnight later a military force of one hundred Askari and two twelve-pounder mountain guns arrived at Wilhelmshöhe—as the entire scattered settlement of the Concession in the Iraku Hills was called (at the request of the Schräders: the Stotts never got nearer the pronunciation than "Williamshoe"). The force was commanded by two smart-looking German lieutenants and a white Feldwebel. The lieutenants, who saluted Brentham as Herr Major, said they were to act under his orders. He was commissioned as a magistrate to proceed to the Red Crater and arrest Adolf Stolzenberg, but not supposed to take any part in the fighting, if force was to be used. That was _their_ business. The Herr Oberst who had sent them remembered that Major Brentham had been wounded in the South African War, and hoped he would take care of himself; if his health was not equal to the journey, then the nearest German district commissioner would go instead. But Roger, in spite of his wife’s pleadings and Maud’s warnings, was keen to see the thing through. Besides, he could serve as guide. So in course of time the expedition found itself drawn up on the grassy plateau and facing the heavy wooden door and stone wall. A summons to open in the name of the law was shouted by the Feldwebel, who had an immense voice. There was no response. Then the guns, put into position, came into play and shattered the door to fragments. One of the lieutenants and half the force marched in.... Half an hour elapsed.... Then the lieutenant reappeared with rather a scared face. "We can only suppose either that Stolzenberg fled some time ago, or that his settlement has simply been engulfed by some appalling volcanic action. Come in and see!" Roger and the rest of the force followed. Inside the Red Crater, which enclosed a space about a mile in diameter, very little could at first be seen but clouds of sulphurous vapours, which when wafted in their direction nearly stifled them; and clouds of steam where the little stream from the hidden pool at the further end of the crater fell into some gulf of heat——