platform, and cautiously opened the flap of the tent. The box
containing oats and sugar had been placed a little distance away, in
plain view.

"That's Prince!" exclaimed Will, for in the moonlight he saw a white
horse eating from the box. The "ghost" had arrived.

Will resolved to make the attempt alone. He stepped softly from the
tent, and made his way toward the horse. He had on a pair of tennis
shoes that made his footsteps practically noiseless. Fortunately,
Prince, should it prove to be that animal, stood sideways to the tent,
his head away from it, so that he did not see Will. The boy tried to
ascertain if there was a saddle on the horse, but there was the shadow
of a tree across the middle of his back, and it was impossible to say
for sure.

Nearer and nearer stole Will. He thought he was going to have no
trouble catching him, but when almost beside Prince, for Will was
certain of the identity now, he stepped on a twig, that broke with a
snap.

With a snort Prince threw up his head and wheeled about. He saw Will,
and leaped away.

"Prince, old fellow! Prince! don't you know me?" called the boy, and
he gave a whistle that Prince always answered.

The horse retreated. Will held out some sugar he had ready for such an
emergency.