He flicked with his belt at those he fancied came too near. Once, where a number ran together over a bare place, he was minded to dismount and trample them with his boots, but this impulse he overcame. Ever and again he turned in his saddle, and looked back at the smoke. "Spiders," he muttered over and over again. "Spiders. Well, well... The next time I must spin a web." XXVII. THE NEW ACCELERATOR. Certainly, if ever a man found a guinea when he was looking for a pin, it is my good friend Professor Gibberne. I have heard before of investigators overshooting the mark, but never quite to the extent that he has done. He has really, this time at any rate, without any touch of exaggeration in the phrase, found something to revolutionise human life. And that when he was simply seeking an all-round nervous stimulant to bring languid people up to the stresses of these pushful days. I have tasted the stuff now several times, and I cannot do better than describe the effect the thing had on me. That there are astonishing experiences in store for all in search of new sensations will become apparent enough. Professor Gibberne, as many people know, is my neighbour in Folkestone. Unless my memory plays me a trick, his portrait at various ages has already appeared in _The Strand Magazine_--think late in 1899 but I am unable to look it up because I have lent that volume to someone who has never sent it back. The reader may, perhaps, recall the high forehead and the singularly long black eyebrows that give such a Mephistophelean touch to his face. He occupies one of those pleasant little detached houses in the mixed style that make the western end of the Upper Sandgate Road so interesting. His is the one with the Flemish gables and the Moorish portico, and it is in the little room with the mullioned bay window that he works when he is down here, and in which of an evening we have so often smoked and talked together. He is a mighty jester, but, besides, he likes to talk to me about his work; he is one of those men who find a help and stimulus in talking, and so I have been able to follow the conception of the New Accelerator right up from a very early stage. Of course, the greater portion of his experimental work is not done in Folkestone, but in Gower Street, in the fine new laboratory next to the hospital that he has been the first to use.