A few minutes later Slim turned away from the trail to the ranch and headed more directly toward the Three Soldiers. He had little difficulty in following the trail for the rider had been pushing his horse hard.

Slim swung along at an easy lope, a pace that Lightning could hold all day. The trail was leading into the foothills of the Three Soldiers and shortly after midday Slim stopped beside a creek to allow Lightning to drink and graze. He had no food for himself, but breakfast at the Box B had been hearty enough to ward off the pangs of hunger until nightfall.

It was mid afternoon when Slim found the place where the unknown rider had stopped to rest himself and his mount. A handful of ashes were still warm and he pushed on with renewed hope. His quarry could not be more than three hours’ ride ahead and on a horse that should be tiring rapidly.

Slim leaped off Lightning and got down to examine the tracks he was following. He wanted the memory of the hoof marks stamped indelibly on his mind. Somewhere in the valley he might come across them again even though the coming night might let his quarry escape this time. The left rear shoe had a V-shaped nick that made it easily recognizable anywhere and after studying the other tracks for some outstanding characteristic, Slim remounted Lightning and pushed steadily ahead. The pace was faster now, and the sturdy sorrel seemed to scent that a chase was on.

They had been climbing for the last two hours and Slim knew that they were well behind and above the Box B layout. It was half an hour before sunset when, from a promontory, he looked down on the ranch buildings, snuggled in the rich valley which was the heart of the Box B.

As the shadows deepened in the Three Soldiers, Slim knew that his quarry was safe for the night. In spite of Lightning’s superior speed and the ease with which he had been able to follow the trail, it would be impossible to overtake the rider ahead.

Slim watered Lightning at a mountain stream and pondered what to do next. It would be a hard ride down to the ranch, but he was hungry. On the other hand, if he stayed in the foothills, he could press on the first thing in the morning, perhaps overtaking the man he sought before he struck the trail again.

Slim’s innate stubbornness and determination to stick to a job until the end finally decided him and he made a crude camp beside the tiny stream. There was plenty of grass for Lightning, but Slim went hungry for the second meal that day. He hitched his belt a trifle tighter and unrolled his blanket.

With the first streak of dawn over the distant Cajons, he had Lightning saddled and ready for the trail. An hour later he came upon the overnight camp of the unknown rider and his heart leaped. The trail was getting hot. Another hour and he should be within striking distance.

Slim felt that if he could but overtake the gunman who had shot down the owner of the Box B, he would have captured an important man in the gang of rustlers. It might be the opening wedge to splitting up the gang and freeing the entire valley of the menace which hung over the cow country.