"I beg of you," she broke out excitedly, "please, please do not talk about it! The whole affair frightens me! Uncle will laugh I know, but--I am terrified of those little flames, Sir Nigel, more terrified than I can say! If you speak of them any more, I must go--really! Please, _please_ don't dream of trying to find out what they are, Sir Nigel! It--it would upset me very much indeed if you attempted so foolish a thing!" Merriton's first sensation at hearing this was pleasure that he was capable of upsetting her over his own personal welfare. Then the something sinister about the whole story, which seemed to affect every one with whom he came into touch, swept over him. A number of otherwise rational human beings scared out of their wits over some mysterious flames on the edge of the Fens at night time, seemed, in the face of this glorious summer's afternoon, to be little short of ridiculous. He tried to throw the idea off but could not. 'Toinette's pale face kept coming before him; the sudden dropping of her spoon struck an unpleasant chord in his memory. Brellier's attitude merely added fuel to the fire and soon they rose to go, Merriton following them to the door. "Don't forget, then, Miss Brellier, that you are booked to me for a ride on Thursday," he said, laughingly. She nodded to him and gave his hand a little squeeze at parting. "I shall not forget, Sir Nigel. But--you will promise me," her voice dropped a tone or two, "you will promise me that you will not try and find out what those--those flames are, won't you? I could not sleep if you did." And they were gone. Merriton stood awhile in silence, his brows puckered and his mouth stern. First Borkins, and then Brellier, and now--_her_! All of them begging him almost upon their knees to forego a perfectly harmless little quest of discovery. There seemed to his mind something almost fishy about it all. What then were these "Frozen Flames"? What secret did they hide? And what malignant power dwelt behind the screen of their mystery? CHAPTER IV AN EVIL GENIUS Thus, despite the bad beginning at Merriton Towers the weeks that followed were filled with happiness for Merriton. His acquaintance with 'Toinette flourished and that charming young woman grew to mean more and more to the man who had led such a lonely life.