Seated at the huge, carved writing-table with the officer to whom he had been addressed, the neutral found himself looking at a pair of keen grey eyes that peered through pince-nez under bushy white eyebrows. The German spread out maps, indicated positions. He drew notice to the fact that all roads squeezed through a bottle-neck over the river at Verdun, spread out in a fan on the east bank to a long line of positions that climbed from the river over the Heights of the Meuse and fell into the plain of the Woevre across which they bent southward. "_Die Sache ist äusserst einfach!_"[12] he said with the air of a man explaining a chess-problem. "The French have three divisions of Territorials in front of us to hold the entire sector. That force is not strong enough to defend it and certainly too weak to have kept the trench-systems in good repair. In fact we know that they have been allowed to fall into ruin.[13] We have fifteen divisions in front line, fifteen divisions in reserve. We do not intend to fling those divisions away. No. Step by step our artillery will blast a passage for them--see, here are our artillery positions," he showed concentric lines one within the other on the map, round the doomed sector. "It is the greatest artillery concentration the world has ever seen. Even our concentration on the Donajetz last year is surpassed. We shall obliterate the positions in front of us--other batteries will drench the only avenues of supplies with shells, they must all go through the town--our infantry will merely march into the devastated position, wait for the clearance of the next step. I may tell you that the French have only one small branch railway line which is safe from our fire. We have built fourteen new lines, besides those already existing. In the great problem of supply we have an overwhelming superiority. We believe we have the advantage of surprise. Certainly the French have no concentration within easy reach. In four days we shall be in Verdun. The Western Front will have been broken." "In four days?" The neutral officer looked at the map as a chess-player looks at the board. "And--if I might ask the question--supposing you do not take Verdun in four days? There is said to be an enormous Allied force somewhere in France." "We have yet another day," said the German a little wearily, as though resenting the effort to explain the unnecessary. "We have five clear days before any reinforcements can be brought up against us--all the chances have been calculated, you see. If we are not in Verdun by the evening of the fifth day--well, the battle will continue. But, I repeat, we shall be in Verdun within four days. The thing is certain!" "Of course it is, General," said another voice above their heads. Both officers looked up, rose to their feet. "In four days we shall be in Verdun. In a fortnight--Paris!"