An idea came to him as soon as he felt Sultan under him.

Woofer undoubtedly had thought to have a horse saddled and ready waiting for him somewhere near the camp. If he could only get Sultan to call to it and get an answer, he would soon find him.

He had no sooner conceived the thought when Sultan whinneyed like a trumpet call.

From a distance came an answering cry. It was the voice of Magpie, and Ted knew it well. Stella's little black-and-white mare and Sultan were the greatest friends, and when she heard him call, she replied.

Woofer was about to steal the most valuable and swiftest of the animals, except Sultan. That was another reason why Ted was now so keen on the chase. He turned Sultan's head in the direction of Magpie's call, and the little stallion galloped away like the wind.

Ted had no bridle, but that was not necessary, for he and Sultan understood one another so well that a slight pressure of the rider's knees was all the guidance the horse needed.

Again came Magpie's shrill call, and this time Sultan nickered and fairly flew. Somewhere ahead, in the darkness, Ted heard for the first time the hoofbeats of the pony, and knew that Woofer had reached it and was away.

"Follow her; catch her, Sultan," called Ted, and Sultan seemed to understand, and let himself out to his full stride, although he missed the firm, guiding hand on the bridle.

Magpie was put to her utmost, but she was heavily handicapped by carrying double for a race against Sultan, who was not even burdened by the heavy saddle he usually bore.

So it was that Sultan steadily gained on the little mare, who was not disposed to do her utmost even under whip and spur, which Woofer did not spare.