“Coming towards his death,” said Leoni mentally, as the man came on and on, gradually ceasing to be so shadow-like and dim as he advanced. “His life or mine. His life or mine. His life or mine,” something within him seemed to keep on saying, till the end of the sentry’s beat appeared to be quite over-passed and he was coming nearer, so near that Leoni felt he saw him at last and the crisis was there, when the man stopped, hesitated for a moment, then began pacing back just as before—but not quite, for almost as soon as his back was turned Leoni’s command over his nerves and muscles ceased, and he began to glide silently along by the tapestried panels to reach Saint Simon and the King at last.

No word was spoken now but the single one “Follow,” as Leoni softly took the King’s hand and led him over the ground he so lately had traversed, pausing after a time as the trio came within sight of the sentry, and standing close up against the wall, to wait till the man reached his nearest point to the secret door to turn in his automaton-like fashion and begin marching back.

Leoni waited till the sentry half covered the distance he had to traverse, and then led the King swiftly and silently till they were nearly opposite the panel door, to pause once more—three shadowy figures now—to wait there during the most crucial time, for the great test was now at hand.

Could he trust the King to remain silent till the man turned back—if he did turn back without distinguishing that he was not alone in the gloomy gallery?

But Leoni was a man of resource, and to meet this difficulty he bade Saint Simon lie down at full-length close to the wall, while he pressed the King behind the pedestal of a statue standing in a niche a few yards away.

It was a great risk, but the King seemed plunged in a deep sleep, and at a time like that something had to be risked. It was the daring of the plan that carried it through, and the fact that the sentry’s perceptions were dulled by habit. Hence it was that he came on, gazing introspectively and seeing nothing but his own thoughts, which were of the near approaching time when he would be relieved, and return to the guard chamber, supper, and sleep.

Leoni hardly breathed as once more he watched the man come on nearer and nearer, apparently to his death, for this time Leoni softly drew the keen stiletto that he wore, and crouched ready to ensure silence and save the King if he were driven to the last extremity. But that was not to be.

The man came to the full extent of his paced-out beat, turned, and marched back, while before he was half the distance to the other end the doctor had glided across the gallery, raised the arras, and pressed the boss, fully expecting to find that the door was fast; but it yielded silently, and the doctor’s heart leaped as he drew in a long deep breath of cool moist air.

Dropping the arras, he stood for a moment gazing after the shadowy sentry, feeling startled to see how far he was still from the end of his beat; and, acting contrary to the mode he had planned in his determination to seize this opportunity if it could be done, he glided swiftly across to where the King was standing, and caught him by the arm.

“Come,” he whispered, with his lips to Francis’s ear, when the King yielded as if he were a portion of the speaker’s self, walking with him silently till they were half across the gallery, when all at once a bright light threw up into bold relief the figure of the sentry at the far limit of his tramp, and the two fugitives stood out plainly before Saint Simon like two black silhouettes upon the distant glow.