"Not so far as I can see; in any case, there are still a number of small and costly articles which would be much easier to turn into ready money than the tortoise. It could not have been any ordinary thief, or if so, it must have been an unusually stupid one!"
"Has the black tortoise any special value to you or to any one else apart from the worth of the gold and the stone?"
"No, that I can gladly swear! You mean, I suppose, is there anything about this diamond, as one reads of in the English detective stories, where black and yellow people sneak about with daggers in their belts and vengeance in their eyes! No! there is nothing of that kind in this case. We found it in the cavern, as I told you, together with all the other diamonds. Man had not set foot there for thousands of years; and the negroes who live thereabouts do not care a fig for diamonds. For that reason they let Davis keep the bag, which he took with him when he escaped in the night. It is only when negroes have learned to know the blessing of civilization that they get a taste for diamonds."
"One thing must be done," I said, "while it is yet light. Will you take care that no one passes in or out through the gate, while I meanwhile find out if any one has got into the garden over the railing?"
As already mentioned, the whole of Frick's property, which was about three or four acres and laid out in a garden, was closed in by a high iron railing.
The distance between the rails was so little that even a child could not squeeze himself through. It was not altogether improbable, though difficult enough, that a daring and agile man might have climbed over the railings, notwithstanding the spikes.
It was, however, easy to find out if any one had got over in that way. It had lately rained a good deal, and the ground on either side of the railing was soft. Any footstep would therefore leave a trace, especially on the outer side, where there was a newly ploughed field.
I went all round the garden; no one had come that way.
Old Frick was patrolling to and fro at the gate, when I returned.
"Nobody has got over the fence to-day," said I.