"What did I tell you, Sophia?" said Aunt Jane in a tone of subdued triumph.

"Yes, sister, you were right," sighed Sophia, shaking her head. "Poor young man. I thought myself he loved Olivia."

"Who loved Olivia?" I asked sharply.

"Felix Briarfield," said Aunt Jane; "when his brother went to America, he was always with her, and no doubt loved her dearly. I can scarcely wonder at that, as she is so beautiful a girl. But he behaved very well, and when Francis came back, went to the Continent."

"He was unable to bear the sight of his brother's happiness," said Aunt Sophia sentimentally; "poor, poor young man! I have no doubt his heart is broken. He actually left Marshminster before his brother arrived from America, so as to spare himself the painful sight of their happiness."

I saw by this conversation that my surmise was correct. Felix had fallen in love with Olivia while his brother was in America, and, selfishly determined not to give her up, had devised the idea of passing himself off as Francis. With this in his mind he had gone to Paris, and pretended to stay there; then reappeared at Marshminster as Francis, alleging an earlier return from Chili as an excuse. When Francis really returned, Felix asked him to be at the Fen Inn, so as to rid himself of his brother before he could see Olivia. Whether he intended to kill Francis or to merely explain matters I could not tell, but at all events Francis had been murdered, and I firmly believed that Felix was morally guilty of the crime. The suppression of the letters, the substitution of himself as Francis, and the dexterous manner in which he had rid himself of the corpse (according to Merrick's theory), all showed me that I had a dangerous and reckless man to deal with. But after the clever way in which he had baffled me in Paris by resuming his name I was prepared for any villainy at his hands. He had committed himself so far that he could not draw back, and was compelled to follow crime by crime in order to bolster up his position.

He was going to town with the evident intention of evading me. Doubtless he thought that, deceived by the episode at the Hôtel des Étrangers, I had quite abandoned all idea of meddling in the affair. But for Merrick I should certainly have done so. Now that Merrick saw the matter in the same light as I did, I was determined to go on, but resolved to give no hint of this to Felix. When he left Marshminster, I could pursue my inquiries at leisure. Already I had been too rash in revealing my intentions, for had I not mentioned my journey to Paris, Felix would not have been put on his guard and baffled me so adroitly.

I had at least gained one important piece of information, which in itself was sufficient to break off the match. The passenger list of the _Copiapo_ proved conclusively that Francis had not reached England before the 6th of June, and this shown to Olivia would show that Felix was passing himself off as her lover. With such proof I could stop the marriage immediately, but preferred to wait until I gained further evidence implicating him in the murder of his brother. I believed Merrick's theory to be true, and quite expected to find that Felix had ridden out to the Fen Inn for the purpose of hiding his brother's body in one of the bogholes.

"By the way," I asked Aunt Jane, as we parted for the night, "how does Miss Bellin look? Like a happy bride! eh?"

"By no means," replied my aunt solemnly; "she looks ill and miserable. But that I know this marriage with Francis is a love match, I should say she disliked the idea of becoming his wife."