Ian looked at him with long, narrow, dark-gold eyes. "They're found in ballads," he said.

Alexander just paused in his stride. "Humph! that's true!..."

They entered the glen. The stream began to brawl; on either hand the hills closed in, towering high. Some of the trees were bare, but to most yet clung the red-brown or the gold-brown dress. The pines showed hard, green, and dead in the shadow; in the sunlight, fine, green-gold, and alive. The fallen leaves, moved by foot or by breeze, made a light, dry, talking sound. The white birch stems clustered and leaned; patches of bright-green moss ran between the drifts of leaves. The sides of the hills came close together, grew fearfully steep. Crags appeared, and fern-crowded fissures and roots of trees like knots of frozen serpents. The glen narrowed and deepened; the water sang with a loud, rough voice.

Alexander loved this place. He had known it in childhood, often straying this way with the laird, or with Sandy the shepherd, or Davie from the house. When he was older he began to come alone. Soon he came often alone, learned every stick and stone and contour, effect of light and streak of gloom. As idle or as purposeful as the wind, he knew the glen from top to bottom. He knew the voice of the stream and the straining clutch of the roots over the broken crag. He had lain on all the beds of leaf and moss, and talked with every creeping or flying or running thing. Sometimes he read a book here, sometimes he pictured the world, or built fantastic stages, and among fantastic others acted himself a fantastic part. Sometimes with a blind turning within he looked for himself. He had his own thoughts of God here, of God and the Kirk and the devil. Often, too, he neither read, dreamed, nor thought. He might lie an hour, still, passive, receptive. The trees and the clouds, crag life, bird life, and flower life, life of water, earth, and air, came inside. He was so used to his own silence in the glen that when he walked through it with others he kept it still. Slightly taciturn everywhere, he was actively so here. The path narrowing, he and Ian must go in single file. Leading, Alexander traveled in silence, and Ian, behind, not familiar with the place, must mind his steps, and so fell silent, too. Here and there, now and then, Alexander halted. These were recesses, or it might be projecting platforms of rock, that he liked. Below, the stream made still pools, or moved in eddies, or leaped with an innumerable hurrying noise from level to level. Or again there held a reach of quiet water, and the glen-sides were soft with weeping birch, and there showed a wider arch of still blue sky. Alexander stood and looked. Ian, behind him, was glad of the pause. The place dizzied him who for years had been away from hill and mountain, pass and torrent. Yet he would by no means tell Alexander so. He would keep up with him.

There was a mile of this glen, and now the going was worse and now it was better. Three-fourths of the way through they came to an opening in the rock, over which, from a shelf above, fell a curtain of brier.

"See!" said Alexander, and, parting the stems, showed a veritable cavern. "Come in—sit down! The Kelpie's Pool is out of the glen, but they say that there's a bogle wons here, too."

They sat down upon the rocky floor strewn with dead leaves. Through the dropped curtain they saw the world brokenly; the light in the cave was sunken and dim, the air cold. Ian drew his shoulders together.

"Here's a grand place for robbers, wraiths, or dragons!"

"Robbers, wraiths, or dragons, or just quiet dead leaves and ourselves. Look here—!" He showed a heap of short fagots in a corner. "I put these here the last time I came." Dragging them into the middle of the rock chamber, he swept up with them the dead leaves, then took from a great pouch that he carried on his rambles a box with flint and steel. He struck a spark upon dry moss and in a moment had a fire. "Is not that beautiful?"

The smoke mounted to the top of the cavern, curled there or passed out into the glen through the briers that dropped like a portcullis. The fagots crackled in the flame, the light danced, the warmth was pleasant. So was the sense of adventure and of solitude à deux. They stretched themselves beside the flame. Alexander produced from his pouch four small red-cheeked apples. They ate and talked, with between their words silences of deep content. They were two comrade hunters of long ago, cavemen who had dispossessed bear or wolf, who might presently with a sharpened bone and some red pigment draw bison and deer in procession upon the cave wall.—They were skin-clad hillmen, shag-haired, with strange, rude weapons, in hiding here after hard fighting with a disciplined, conquering foe who had swords and shining breastplates and crested helmets.—They were fellow-soldiers of that conquering tide, Romans of a band that kept the Wall, proud, with talk of camps and Cæsars.—They were knights of Arthur's table sent by Merlin on some magic quest.—They were Crusaders, and this cavern an Eastern, desert cave.—They were men who rose with Wallace, must hide in caves from Edward Longshanks.—They were outlaws.—They were wizards—good wizards who caused flowers to bloom in winter for the unhappy, and made gold here for those who must be ransomed, and fed themselves with secret bread. The fire roared—they were happy, Ian and Alexander.