At last, in spite of his distractions, De Plonville added the finishing touches to his notable invention, and all that remained was to put it to a practical test. He chose a day when that portion of the French navy which frequents the Rade d'Hyeres was not in sight, for he did not wish to come within the field of the telescope at the Chateau terrace. He felt that he would not look his best as he paddled his new-fangled boat. Besides, it might sink with him. There was not a sail in sight as he put forth. Even the fishing boats of Carqueyranne were in shelter. The sea was very calm, and the sun shone brightly. He had some little difficulty in getting seated, but he was elated to find that his invention answered all expectations. As he went further out he noticed a great buoy floating a long distance away. His evil genius suggested that it would be a good thing to paddle out to the buoy and back. Many men can drink champagne and show no sign, but few can drink success and remain sober. The eccentric airs assumed by noted authors prove the truth of this. De Plonville was drunk, and never suspected it. The tide, what little there is of it in the Mediterranean, helped him, and even the gentle breeze blew from the shore. He had some doubts as to the wisdom of his course before he reached the gigantic red buoy, but when he turned around and saw the appalling distance to the coast, he shuddered. The great buoy was of iron, apparently boiler plate, and there were rings fastened to its side. It was pear-shaped with the point in the water, fastened to a chain that evidently led to an anchor. He wondered what it was for. As he looked up it was moved by some unseen current, and rolled over as if bent on the destruction of his craft. Forgetting himself, he sprang up to ward it off, and instantly one foot went through the thin waterproof that formed the bottom and sides of his boat. He found himself struggling in the water almost before he realized what had happened. Kicking his foot free from the entanglement that threatened to drag him under, he saw his invention slowly settle down through the clear, green water. He grasped one of the rings of the buoy, and hung there for a moment to catch his breath and consider his position. He rapidly came to the conclusion that it was not a pleasant one, but further than that he found it difficult to go. Attempting to swim ashore would be simply one form of suicide. The thing to do was evidently to get on top of the buoy, but he realized that if he tried to pull himself up by the rings it would simply roll him under. He was surprised to find, however, that such was not the case. He had under- estimated both its size and its weight.