Foster flushed. He read unerringly the intense dislike in the young officer's gaze, but he dissembled:

"To ride, 'bout four o'clock," was the matter-of-course reply.

"Major Dwight said both his horses were at your disposal. He's only had one out to-day. Is Mrs. Dwight going to ride the other?"

Foster's eyelids shut to a narrow slit. His mustache began to bristle at the ends. Now the red was flitting and his face was turning sallow.

"While I consider that none of your business, Mr. Ray—yes!"

"Then," said Sandy, his cheek white, his lips set, his eyes aflame, "you can't have mine."

The low hum of voices, the gurgle of laughter drifting through the stove-pipe hole and through the crevices of the pine partition from the lounging-room beyond, seemed to die away almost at the moment. Ray had hardly uplifted his voice. For an instant a silence fell on the facing pair in the Exchange office—the one rather tall, fair, stylishly garbed in the latest civilian fashion; the other short, slender, trimly built, with dark curling hair and snapping black-brown eyes; both men trembling now, but neither dropping an eyelid. Then with clinching fist and fiery eyes the elder took a step forward. He was throwing off the mask. He was speaking angrily, audibly:

"By Heaven, Ray, if I didn't happen to know that you are, or had been, madly in love with Mrs. Dwight, I—I'd consider that an insult."

"Well," came the ready response, "why not so consider it—anyhow?"

In an instant the larger, heavier, stronger man had hurled himself on the slender junior and, one sinewy hand on the back of the neck, the other at the throat, Foster shook him furiously—but only for a second. No sooner did Ray feel himself seized than he "let go" with both fists, and both fists found their mark on Foster's face—one swing, the right, stinging him on the unguarded jaw. Two more followed in the flash of a second, and Foster, stunned and amazed, dropped his hold and for a second recoiled. In blind fury the next moment he rushed again, Ray springing lightly aside, whirling and sending his right with electric snap square to the already smarting jowl—a blow that staggered yet did not fell the stronger man, the man who even in his rage managed partially, at least, to recover his wits, for as he straightened up he held forth protesting hand and panted: "Stop! Not now. They hear us, and by the God that made me you'll hear from me. You dare to strike—your superior officer!"