Mr. Lewis brought his fist down on the arm of the chair.

“That’s the region we’ll explore,” he said, while Bob’s father nodded. “Have you any idea how to get there?”

“No,” their host responded. “But I know of two natives who have. They live in Mbarara. You men left from there on your last safari in this part of Africa.”

“Yes,” came from Mr. Holton. “But who are these two natives?”

“One is named Noko and the other is Kaika——”

“Kaika!” interrupted Joe’s father. “Why, he was our head bearer on our last safari.”

“That so?” asked Mr. Seabury, somewhat surprised. “Well, he and Noko have been to the Forest of Mystery and know how to get there.”

“Fine.” Mr. Holton smiled happily. “That’s the very place we’ll set out for. And we’ll certainly keep on the lookout for your brother.”

“You don’t know how much it will mean to me if Thomas is found,” said Mr. Seabury. “Of course, I am in no condition to go in search of him, and it would be next to impossible to engage some stranger to do it. So if you will keep on the watch for him, it will certainly ease matters.”