There were busy days about the Swift home. Mrs. Baggert, the housekeeper, was in despair. She said the good meals she got ready were wasted, because no one would come to table when they were ready. She would ring the bell, and announce that dinner would be served in five minutes.

Then Tom would shout from his workshop that he could not leave until he had inserted a certain lever in place. Mr. Jackson would positively decline to sit down until he had screwed fast some part of a machine. Even Mr. Swift, who, because of his recent illness, was not allowed to do much, would often delay his meal to test some new style of gears.

As for Mr. Damon, it was to be expected that he would be eccentric as he always was. He was not an expert mechanic, but he knew something of machinery and was of considerable help to Tom in the rush work on the airship. He would hear the dinner bell ring, and would exclaim:

“Bless my napkin ring! I can’t come now. I have to fix up this electrical register first.”

And so it would go. Eradicate and Boomerang, his mule, were the only ones who ate regularly, and they always insisted on stopping at exactly twelve o’clock to partake of the noonday meal.

“‘Cause ef I didn’t,” explained the colored man, “dat contrary mule ob mine would lay down in de dust ob de road an’ not move a step, lessen’ he got his oats. So dat’s why we has t’ eat, him an’ me.”

“Well, I’m glad there’s some one who’s got sense,” murmured Mrs. Baggert. Eradicate and Boomerang were of great service in the hurried work that followed, for the colored man in his cart brought from town, or from the freight depot, many things that Tom needed.

The young inventor was very enthusiastic about his proposed trip, and at night, after a hard day’s work in the shop, he would read books on African hunting, or he would sit and listen to the stories told by Mr. Durban. And the latter knew how to tell hunting tales, for he had been long in his dangerous calling, and had had many narrow escapes.

“And there are other dangers than from elephants and wild beasts in Africa,” he said.

“Bless my toothbrush!” exclaimed Mr. Damon. “Do you mean cannibals, Mr. Durban?”