The guard stopped, presented arms to this small, peremptory terrier, and inquired facetiously if he had a pass. Bobby bristled and yelped indignantly. The soldier grinned with amusement. Sentinel duty was lonesome business, and any diversion a relief. In a guardhouse asleep when Bobby came into the Castle, he had not seen the little dog before and knew nothing about him. He might be the property of one of the regiment ladies. Without orders he dared not let Bobby out. A furious and futile onslaught on the gate he met with a jocose feint of his bayonet. Tiring of the play, presently, the soldier turned his back and paced to the end of his beat. Bobby stopped barking in sheer astonishment. He gazed after the stiff, retreating back, in frightened disbelief that he was not to be let out. He attacked the stone under the barrier, but quickly discovered its unyielding nature. Then he howled until the sentinel came back, but when the man went by without looking at him he uttered a whimpering cry and fled upward. The roadway was dark and the dusk was gathering on the citadel when Bobby dashed across the summit and down into the brightly lighted square of the Palace Yard. The gas-lamps were being lighted on the bridge, and Mr. Traill was getting into his streetcoat for his call on Mr. Brown when Tammy put his head in at the door of the restaurant. The crippled laddie had a warm, uplifted look, for Love had touched the sordid things of life, and a miracle had bloomed for the tenement dwellers around Greyfriars. “Maister Traill, Mrs. Brown says wull ye please send Bobby hame. Her gude-mon's frettin' for 'im; an' syne, a' the folk aroond the kirkyaird hae come to the gate to see the bittie dog's braw collar. They wullna believe the Laird Provost gied it to 'im for a chairm gin they dinna see it wi' their gin een.” “Why, mannie, Bobby's no' here. He must be in the kirkyard.” “Nae, he isna. I ca'ed, an' Ailie keeked in ilka place amang the stanes.” They stared at each other, the landlord serious, the laddie's lip trembling. Mr. Traill had not returned from his numerous errands about the city until the middle of the afternoon. He thought, of course, that Bobby had been in for his dinner, as usual, and had returned to the kirkyard. It appeared, now, that no one about the diningrooms had seen the little dog. Everybody had thought that Mr. Traill had taken Bobby with him. He hurried down to the gate to find Mistress Jeanie at the wicket, and a crowd of tenement women and children in the alcove and massed down Candlemakers Row. Alarm spread like a contagion. In eight years and more Bobby had not been outside the kirkyard gate after the sunset bugle. Mrs. Brown turned pale. “Dinna say the bittie dog's lost, Maister Traill. It wad gang to the heart o' ma gudemon.”