"Just come here and look at this map, Mr Fortescue," he said, and he spoke with the air and in the tones of a man who is so utterly dazed with disappointment that he begins to doubt the evidence of his own senses.  "Just give me your opinion, will ye.  I cannot understand this business at all.  This map, although only a free-hand sketch, seems to me to be perfectly accurate.  There, you see, is the mouth of the river, just as we found it; there are the little islets that we passed immediately after getting inside; there are the dry mud-banks; and there, you see, the river widens out, in precise accordance with our experience; here it narrows again at the bend; there is where the boats are lying concealed; and this," laying his finger upon a particular part of the sketch, "is the creek that we are now looking at; and there is the town of Olomba.  It all seems to me to be absolutely correct.  Does it not appear so to you?"