Dryden turned upon him a look so tigerish that the old man felt his hair move. "Don't you stir," he hissed. "You want to give me away. You want them to see me. Don't you stir." The sergeant decided not to stir. He became aware of the slow wheeling of eternity, its majestic incomprehensibility of movement. Seconds, minutes, were quaint little things, tangible as toys, and there were billions of them, all alike. "Dryden," he whispered at the end of a century in which, curiously, he had never joined the marine corps at all but had taken to another walk of life and prospered greatly in it. "Dryden, this is all foolishness." He thought of the expedient of smashing the man over the head with his rifle, but Dryden was so supernaturally alert that there surely would issue some small scuffle and there could be not even the fraction of a scuffle. The sergeant relapsed into the contemplation of another century. His patient had one fine virtue. He was in such terror of the phantom skirmish line that his voice never went above a whisper, whereas his delusion might have expressed itself in hyena yells and shots from his rifle. The sergeant, shuddering, had visions of how it might have been--the mad private leaping into the air and howling and shooting at his friends and making them the centre of the enemy's eager attention. This, to his mind, would have been conventional conduct for a maniac. The trembling victim of an idea was somewhat puzzling. The sergeant decided that from time to time he would reason with his patient. "Look here, Dryden, you don't see any real Spaniards. You've been drinking or--something. Now----" But Dryden only glared him into silence. Dryden was inspired with such a profound contempt of him that it was become hatred. "Don't you stir!" And it was clear that if the sergeant did stir, the mad private would introduce calamity. "Now," said Peasley to himself, "if those guerillas _should_ take a crack at us to-night, they'd find a lunatic asylum right in the front and it would be astonishing." The silence of the night was broken by the quick low voice of a sentry to the left some distance. The breathless stillness brought an effect to the words as if they had been spoken in one's ear. "_Halt--who's there--halt or I'll fire!_" Bang!