“And it would be a pleasure to press their hands; but, are we going in the desirable direction?”

“Not any too well, Dick; not any too well! Look at the needle of the compass; we are bearing southward, and ascending the Niger toward its sources.”

“A fine chance to discover them,” said Joe, “if they were not known already. Now, couldn’t we just find others for it, on a pinch?”

“Not exactly, Joe; but don’t be alarmed: I hardly expect to go so far as that.”

At nightfall the doctor threw out the last bags of sand. The Victoria rose higher, and the blow-pipe, although working at full blast, could scarcely keep her up. At that time she was sixty miles to the southward of Timbuctoo, and in the morning the aëronauts awoke over the banks of the Niger, not far from Lake Debo.

CHAPTER FORTIETH.

Dr. Ferguson’s Anxieties.—Persistent Movement southward.—A Cloud of Grasshoppers.—A View of Jenné.—A View of Ségo.—Change of the Wind.—Joe’s Regrets.

The flow of the river was, at that point, divided by large islands into narrow branches, with a very rapid current. Upon one among them stood some shepherds’ huts, but it had become impossible to take an exact observation of them, because the speed of the balloon was constantly increasing. Unfortunately, it turned still more toward the south, and in a few moments crossed Lake Debo.

Dr. Ferguson, forcing the dilation of his aërial craft to the utmost, sought for other currents of air at different heights, but in vain; and he soon gave up the attempt, which was only augmenting the waste of gas by pressing it against the well-worn tissue of the balloon.

He made no remark, but he began to feel very anxious. This persistence of the wind to head him off toward the southern part of Africa was defeating his calculations, and he no longer knew upon whom or upon what to depend. Should he not reach the English or French territories, what was to become of him in the midst of the barbarous tribes that infest the coasts of Guinea? How should he there get to a ship to take him back to England? And the actual direction of the wind was driving him along to the kingdom of Dahomey, among the most savage races, and into the power of a ruler who was in the habit of sacrificing thousands of human victims at his public orgies. There he would be lost!