They discussed their plans at some length, for, now that the airship had proved all that they had hoped for, it would not be long ere they were under way. In the days that followed Tom put the finishing touches on the craft, arranged to have it packed up for shipment, and spent some time practicing with his electric rifle. He got to be an expert shot, and Mr. Durban, who was a wonder with the ordinary rifle, praised the young inventor highly.
"There won't many of the big tuskers get away from you, Tom Swift," he said. "And that reminds me, I got a letter the other day, from the firm I collect ivory for, stating that the price had risen because of a scarcity, and urging me to hurry back to Africa and get all I could. It seems that war has broken out among some of the central African tribes, and they are journeying about in the jungle, on the war path here and there, and have driven the elephants into the very deepest wilds, where the ordinary hunters can't get at them."
"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
