"Their endurance is incredible, magnificent," eulogized General Thario enthusiastically. "They are contending not only with the prospect of meeting fresh, unworn troops on our side, but against a tireless enemy who cannot be awed or hurt and even more against their own feelings of fear and despair which must come upon them constantly as they get farther into this green desert, farther from natural surroundings, deeper into the silence and mystery of the abnormal barrier they have undertaken to cross. They are supermen and only supernatural means will defeat them." But there was plenty of evidence that the general credited the foe with a stronger spirit than they possessed. Their spirit was undoubtedly high, but it could not stand up against the relentless harassment of the grass. The weary, sodden advance went on, slower and slower; the toll higher and higher. There were signs of dissatisfaction, mutiny and madness. Some units turned about to be shot down by those behind, some wandered off helplessly until lost forever. The dwindling of the great army accelerated, airborne replacements dependent on such erratic transport failed to fill the gaps. The marchers no longer fired at the airships overhead; they moved their feet slowly, hopelessly, stood stockstill for hours or faltered aimlessly. Occasional improvised white flags could be seen, held apathetically up toward the balloonists. Long after their brave start the crazed and starving survivors began trickling into the American lines where they surrendered. They were dull and listless except for one strange manifestation: they shied away fearfully from every living plant or growth, but did they see a bare patch of soil, a boulder or stretch of sand, they clutched, kissed, mumbled and wept over it in a very frenzy. _45._ But the catastrophic loss of their great armies was not all the enemy had to endure. As the grass had stood our ally and swallowed the attackers, helping us in a negative fashion as it were, it now turned and became a positive force in our relief. Unnoticed for months, it had crept northwestward, filching precious mile after mile of the hostile foothold. Now it spurted ahead as it had sometimes done before, at a furious pace, to take over the coast as far north as the Russian River, which now doubled the irony of its name, and added thousands of square miles to its area at the enemy's expense. It surged directly westward too, making what was left of the invader's foothold precarious in the extreme.