“Why—you said you might go,” Bob answered.

“Well, there isn’t going to be any ‘might’ in it,” Mr. Lewis said. “We’re going.”

The youths bounded out of bed in wild excitement.

“You mean we’re actually going to Africa?” cried Joe, falling over himself in enthusiasm.

The naturalists laughed significantly.

“We’re not certain how that ‘we’ will work out,” chuckled Mr. Holton. “But we’re almost sure of one thing: Ben [Mr. Lewis] and I are going. How many more will make up the expedition we haven’t decided as yet. In fact, it was only this morning that we came to a conclusion.”

“Oh, you’ve got to take Joe and me,” Bob begged. “We always have wanted to explore in the Dark Continent. We’re plenty old enough to take care of ourselves. You see how we made short work of dangerous wild animals in the Andes and in Brazil. Well, we could do the same with lions and elephants.”

“Don’t be too sure of that,” said his father gravely but with twinkling eyes. “There’s scarcely anything worse than a charging elephant.”

“Just the same, we’d take care of the situation,” said Bob boastfully. “They wouldn’t stand much chance before the Lewis-Holton expedition. Why we’d mow ’em down right and left. But seriously, Dad, Mr. Lewis, why can’t Joe and I go with you?”

“We’d like to have you,” his father assured him. “But of course you’ll have to reckon with your mothers. Suppose,” he went on, “we don’t say anything more about this matter until we get back to Washington. You see, there’s a chance that the museum heads will have something else for us to do. In that case, we won’t go.”