Sanders shook his head.

"The lord knows what he has done or what has happened to him," he said.

It was at that moment that the messenger came. The Zaire was tied to the bank of the Upper Isisi on the edge of the forest of Bim-bi, and the Houssas were bivouacked on the bank, their red fires gleaming in the gathering darkness.

The messenger came from the forest boldly; he showed no fear of Houssas, but walked through their lines, waving his long stick as a bandmaster will flourish his staff. And when the sentry on the plank that led to the boat had recovered from the shock of seeing the unexpected apparition, the man was seized and led before the Commissioner.

"O, man," said Sanders, "who are you and where do you come from? Tell me what news you bring."

"Lord," said the man glibly, "I am Mimbimi's own headman."

Sanders jumped up from his chair.

"Mimbimi!" he said quickly; "tell me what message you bring from that thief!"

"Lord," said the man, "he is no thief, but a high prince."