HOW MAC STRANN KEPT THE LAW For when the dog sprang, Mac Strann fired, and the wolf was jerked up in the midst of his leap by the tearing impact of the bullet.

It was easy for Strann to dodge the beast, and the great black body hurtled past him and struck heavily on the floor of the barn.

It missed Mac Strann, indeed, but it fell at the very feet of Haw-Haw Langley, and a splash of blood flirted across his face.

He was too terrified to shriek, but fell back against the wall of the barn, gasping.

There he saw Black Bart struggle to regain his feet, vainly, for both of the animal's forelegs seemed paralyzed.