Tad stepped out, pausing to look about the place. His purpose was to learn if the owner of the shack had ridden away or if he were hiding somewhere in that vicinity. If he had ridden away there must be the trail of the horse with the bare off fore foot.

The Pony Rider Boy circled about, first looking for the place where the horse had been tethered. He found it without great difficulty, for a hoofprint always attracted Tad Butler's attention. Even at home he found himself studying them in the streets, out on the highways, wherever horses traveled. As a result he could read much more than the average good observer from tracks that lay before him. Tad was able even to form some opinion of the man who was riding the horse that had left the tracks.

The ground was considerably trampled at the tethering ground, and the bushes stripped clear of foliage where the horse had been browsing. It was this latter that had attracted the boy's attention first of all, telling him that a horse had been tethered there. From that, it was not a difficult matter to look up the trails. There were several of these. More time was necessary to determine which of them had been made last, but after a little study the Pony Rider Boy picked out the fresh trail.

"He rode out this way, heading southwest, I should call it," muttered the lad. "I wonder where he was heading for? Still, there is no use wondering, for he may have turned due east or due west after going farther into the swamp or the brake. The question is, where is he now, and is he coming back here today?"

The question was answered in a manner wholly unlooked for by Tad Butler. For the moment the lad, caught off his guard, was at a loss what to do. But his quick wit came to his rescue. Tad dropped to all fours and on hands and feet began running over the ground like a monkey, his body well screened by the bushes about him.

[CHAPTER XXI]

SURPRISES COME FAST

The cause of Tad's alarm had been a slight trembling of the soft ground underfoot, followed by a crunching sound as if something or someone had trod on a rotting stick. The lad knew that either man or beast was near at hand, but he did not have time to satisfy himself which of the two it was. He acted quickly, and, regardless of snakes, wriggled away to a place of greater safety. He reasoned, of course, that if it were the owner of the shack returning, he would ride his horse to its stable first of all.

Crouching down in the bushes the boy waited and listened. By this time he could tell that it was a horse approaching. Taking a long chance the boy half rose from his hiding place and peered out. Not more than six rods from him he saw the fellow who had stolen his doe riding straight towards him.

The Pony Rider Boy quickly drew back and none too soon, for the fellow's eyes caught the faint movement of the bushes at that point. He probably thought this movement had been caused by some lurking animal, for he made no attempt to investigate. He tethered his horse silently, then to Tad's alarm either his own horse or Lilly's uttered a loud whinny.