"I wonder if the important letters can be in this bag," mused Jack, as he urged Sunger onward. There was no way of telling.

The stage, as the messenger had said, had broken down half way between Bosford and Tuckerton. These were two small settlements, the last one being about three miles from Golden Crossing.

As Jack was passing through the eastern outskirts of Tuckerton he noticed that Sunger was limping slightly.

"Hello! What's this? Got a stone under your shoe?" he exclaimed, as he got off. He made an examination and found that such was the case. Sunger had gone lame, though not so badly but that, with the removal of the stone, the animal could be ridden.

"I'll fix you up," Jack said, as he guided the pony to a shady spot on the trail, and proceeded to get out a simple kit he carried with him for emergencies.

CHAPTER XVII

AN INVITATION DECLINED

Jack's first idea was that he could soon and easily remove from between the hoof and shoe the small stone that was making his pony lame. But when he got to work at it, with a peculiarly shaped hook, such as is used for that purpose, the lad found the work was going to take longer than he had anticipated.

"But it's got to be done, old boy," he said, addressing the little horse. "It's got to be done, and I've got to do it. I can't very well walk you to the blacksmith shop back in town, for you'd be lamer than ever, and I'd probably have to stable you; and I can't leave you with the mail and go and get the smith to come out here. So I've got to do the work myself. I'll be a little late with the mail, but it can't be helped."

Jack realized that he would have a good excuse to offer for not getting back to Rainbow Ridge on time, as he had had to go out of his usual route to bring in the mail to Golden Crossing, which was still some miles away.