Page:Bedford-Jones--The Mardi Gras Mystery.djvu/199

 from some very tiny surface seepage close at hand, that was lost in the bayou almost as rapidly as it came from the earth-depths. Only accidentally would a man see it—not unless he were searching the water close to the bank, and even then only by the grace of chance.

Suddenly Gramont saw that he had lost the sign. He halted.

No, not lost, either! Just ahead of him was a patch of reeds, and a recession of the shore. He advanced again. Inside the reeds he found the oily smear, still so faint that he could only detect it at certain angles. Glancing up, he could see a fence at a little distance, evidently the boundary fence of the Ledanois land; the bushes and trees thinned out here, and on ahead was cleared ground. He saw, through the bushes, glimpses of buildings.

Violent disappointment seized him. Was he to lose this discovery, after all? Was he to find that the seepage came from ground belonging to someone else? No—he stepped back hastily, barely in time to avoid stumbling into a tiny trickle of water, a rivulet that ran down into the bayou, a tributary so insignificant that it was invisible ten feet distant! And on the surface a faint iridescence.