The motor boys made a long trip over the Rockies in their motorship, and helped to rescue a band of white persons who were held captives by a strange tribe of Indians. Later, Jerry and his chums, as told in the eleventh book of the series made a flight over the ocean, and succeeded in rescuing a Mr. Jackson, who with some friends and a crew were unconscious in a dirigible balloon that had become disabled at sea. Mr. Jackson, as told in the story “The Motor Boys Over the Ocean,” was being sought by Mr. Slade, to aid him in his department store business, which was on the verge of failure. And Ned and his chums rescued Mr. Jackson just in time, not only to save his life, but to prevent the ruin of Mr. Slade’s business.

The boys had been back from this trip over the ocean some time now, and, after a winter spent at their studies, they were, with the arrival of summer, ready for fresh adventures.

They had been out for a spin in their auto when the events narrated in the first chapter took place, and now we will resume their acquaintance in the hotel where they are just finishing dinner.

“Well, shall we go on?” asked Jerry, as he and his chums arose from the table.

“Oh, let’s sit around a while and rest,” proposed Bob. “It’s bad for digestion to hustle around right after a meal.”

“There’s nothing the matter with your digestion,” declared Jerry with a laugh. “But I guess it won’t hurt us to sit around a bit. Who’s got that paper about the aviation meet?”

“Here it is,” replied Bob, passing it to his tall friend.

“I see you are interested in airships,” remarked the hotel clerk, for the lads were talking in front of the desk where they had paid for their meal. “We have other guests here today who are what you call ‘birdmen’ I guess.”

“What, some aviators here?” exclaimed Ned, and he and his two chums showed the interest they felt.