"Why do you call me Mr. Fellenger?" asked Louis, quietly.

"You will find the answer to that question in this paper," replied Fanks, and passed it to the baronet. After a pause, and a sharp glance at the detective, Fellenger took the thin yellow sheet, and read it slowly. This was what he read, in the faded handwriting of Sir Francis:

"I have deceived Madaline Garry; I am the father of the child born to her about the same time that my heir, Gregory, was born. Madaline wished me to marry her; but, for reasons which I need not explain here, I was unable to do so. She married Luke Fielding, and he is supposed to be the father of her child. This is not so; the boy is mine. When my wife died, Madaline insisted on coming to the Hall and nursing Gregory. For obvious reasons I could not refuse her; she would have revealed the truth, and have disgraced me and her family, had I not yielded to her wish. She came to the Hall with her own child and nursed that of my late wife. But I was afraid that she would change the children so that her son should enjoy what rightfully belonged to his half-brother. I was twice nearly sending her away on account of this fear; but she threatened to disgrace me by revealing the truth; so I let her stay. But, to avert the danger, I one night tattooed on the left arm of my son, Gregory, the cross of St. Catherine, which I had already tattooed on the arm of Madaline and of Nancy Prisom. Should the children be changed, and I die, the truth can be ascertained by the tattooed cross. The child marked with the cross is my son and heir, Gregory Fellenger; the other is his brother, Edward, the son of myself and Madaline Garry. I hope, in this way, that I shall prevent Madaline from revenging herself on me, as I feel sure she intends to do.

(Signed), Francis Luddham Fellenger."

On reading this extraordinary document, Louis felt the room whirl round him, and he was fain to be seated. Fanks turned silently towards him and received back the paper--the paper which robbed the young man at one sweep of title and property. Louis recovered himself, and smiled faintly. "I understand," he said, in a low tone, "Sir Gregory enjoyed the title and estates wrongfully; Hersham is the rightful heir."

"Yes. Madaline Garry fulfilled her vengeance. She put her child in the place of the real heir, after the death of Sir Francis, and took away the son of Lady Fellenger. That was why she came to the Hall to be the nurse; she wanted her child to enjoy the property. Owing to the tattooing and the father being alive, she could not change the children; but when Sir Francis was killed she did so, and therefore secured the title for her son. I now understand why she parted so readily with Hersham so that he should be adopted by the Vicar of Fairview; he was not her child, but that of her rival in the affections of Sir Francis; I can see all this; so can you; but," added Fanks, with hesitation, "can you guess how this discovery affects you?"

"Certainly," replied Louis, calmly, "I shall have to give the property up to my cousin, who now goes by the name of Hersham. I assure you, I shall not mind the loss so much as you seem to think. As I told you, I care nothing for money, and everything for science. Oh, believe me, Mr. Fanks, I am quite content to surrender title and estates, and go back to Taxton-on-Thames, as plain Louis Fellenger."

"You can contest this matter?"

"I shall not contest the matter. I believe that paper to be true. We found it together; and it proved beyond a doubt--by the evidence of the cross tattooed on Hersham's left arm, that he is the rightful Sir Gregory, and the owner of these estates. Let him have them; I shall not raise one finger to prevent his enjoying what is rightfully his own. Besides, I like Hersham--as I may still call him--he is a good fellow. I used to meet him at Taxton-on-Thames. Let him marry Anne Colmer, and take up his position; he will make a much better baronet than I."

They left the room, and went downstairs again to the library. In there Louis asked Fanks a question which had been in his mind for some time.