“Maybe we won’t have any luck, either,” suggested Ned.

“Oh, yes, we will,” declared the hunter.  “With our airship, the worst forest of the dark continent won’t have any terrors for us, for we can float above it.  And the fights of the natives won’t have any effect.  In a way, this will be a good thing, for with the price of ivory soaring, we can make more money than otherwise.  There’s a chance for us all to get a lot of money.”

“Bless my piano keys!” exclaimed Mr. Damon, “if I can get just one elephant, and pull out his big ivory teeth, I’ll be satisfied.  I want a nice pair of tusks to set up on either side of my fireplace for ornaments.”

“A mighty queer place for such-like ornaments,” said Mr. Durban in a low voice.  Then he added:  “Well, the sooner we get started the better I’ll like it, for I want to get that pair of big tusks for a special customer of mine.”

“I’ll give the Black Hawk one more trial flight, and then take her apart and ship her,” decided Tom, and the final flight, a most successful one, took place the following day.

Then came another busy season when the airship was taken apart for shipment to the coast of Africa by steamer.  It was put into big boxes and crates, and Eradicate and his mule took them to the station in Shopton.

“Don’t you want to come to Africa with us, Rad?” asked Tom, when the last of the cases had been sent off.  “You’ll find a lot of your friends there.”

“No, indeedy, I doan’t want t’ go,” answered the colored man, “though I would like to see dat country.”

“Then why don’t you come?”

“Hu!  Yo’ think, Massa Tom, dat I go anywhere dat I might meet dem little red men what Massa Durban talk about?  No, sah, dey might hurt mah mule Boomerang.”

“Oh, I wasn’t going to take the mule along,” said Tom, wondering how the creature might behave in the airship.

“Not take Boomerang?  Den I SUTTINLY ain’t goin,” and Eradicate walked off, highly offended, to give some oats to his faithful if somewhat eccentric steed.

After the airship had been sent off there yet remained much for Tom Swift to do.  He had to send along a number of special tools and appliances with which to put the ship together again, and also some with which to repair the craft in case of accident.  So that this time was pretty well occupied.  But at length everything was in readiness, and with his electric rifle knocked down for transportation, and with his baggage, and that of the others, all packed, they set off one morning to take the train for New York, where they would get a steamer for Africa.

Numerous good-bys had been said, and Tom had made a farewell call on Mary Nestor, promising to bring her some trophy from elephant land, though he did not quite know what it would be.

Mr. Damon, as the train started, blessed everything he could think of.  Mr. Swift waved his hand and wished his son and the others good luck, feeling a little lonesome that he could not make one of the party.  Ned was eager with excitement, and anticipation of what lay before him.  Tom Swift was thinking of what he could accomplish with his electric rifle, and of the wonderful sights he would see, and, as for the old elephant hunter, he was very glad to be on the move again, after so many weeks of idleness, for he was a very active man.