He had been foiled half a dozen times in his attempts to get Sourdough into Paddy's stall when Jan was there and Dick Vaughan engaged in any way elsewhere. It seemed that some of Dick's comrades were always on hand to bar the way; and, for appearance's sake, the sergeant could not have it said that he had deliberately brought about a fight between his dog and the valued hound of an officer, who was everybody's favorite.

"They're afraid, Sourdough, that's what it is; they're afraid you might chew up the overgrown brute and spit him out in scraps about the yard. Let 'em wait. We'll give 'em something to be afraid of presently."

He meant it, and he kept his word.

Since the Italian murder case, a regular craze had developed among the men for trailing and the education of dogs. The barracks dogs were constantly being added to, and every man who owned or could obtain a dog gave his leisure to attempts—largely unsuccessful—at training the animal to track.

O'Malley was one of the first to succumb to the new diversion, and was lavishing immense care and patience upon the education of a cross-bred Irish terrier, who would soon be able to wipe the eye of any Sassenach dog in Canada, so he would! Meanwhile O'Malley, conveniently forgetful of Jan's English nationality, was fond of borrowing the big hound for an hour or so together to help him in his educational efforts on behalf of Micky Doolan, the terrier. In such a matter Dick Vaughan and Jan were equally approachable and good-natured. Indeed, the pair of them had already done more than any of the different pupils' masters in the matter of this revival of schooling among the barracks dogs.

It happened toward four o'clock of a late autumn day that Dick Vaughan was engaged in Regina in attendance upon a great personage from Ottawa. O'Malley, having borrowed Jan's services as helper, was busy giving tracking lessons to Micky Doolan on the prairie, half a mile from barracks. Chancing to look up from his work, O'Malley saw Sergeant Moore approaching on foot, with Sourdough (as ever) at his heels. He did not know that the sergeant had been watching him through binoculars from the barracks, and that he had spent a quarter of an hour in carefully devised efforts to exacerbate the never very amiable temper of Sourdough.

O'Malley swore afterward that as the sergeant drew level with little Micky Doolan (a dozen paces or so from the Irishman), he whispered to Sourdough, and "sooled him on."

"Tsss—sss! To him, then, lad," is what O'Malley vowed the sergeant said.

Be that as it may, Sourdough did wheel aside, as his way was, and administer a savage slash of his fangs upon poor little Micky's neck. As O'Malley rushed forward to protect his pet the game little beast, instead of slinking back from tyrant Sourdough, a tribute that hard case demanded from every dog he met, sprang forward with a snarl and a plucky attempt to return the unsolicited bite he had received.

"Come in, come in, ye little fool!" yelled O'Malley.