Sherlock Holmes - Deductions

“Well, yes, of course the pay is good — too good. That is what makes me uneasy. Why should they give you 120 pounds a year, when they could have their pick for 40 pounds? There must be some strong reason behind.”
Still, it is clear that she is not personally threatened.”
“No. If she can come to Winchester to meet us she can get away.”
“Quite so. She has her freedom.”

“Of course there is only one feasible explanation. You have been brought there to personate someone, and the real person is imprisoned in this chamber. That is obvious. As to who this prisoner is, I have no doubt that it is the daughter, Miss Alice Rucastle, if I remember right, who was said to have gone to America. You were chosen, doubtless, as resembling her in height, figure, and the colour of your hair. Hers had been cut off, very possibly in some illness through which she has passed, and so, of course, yours had to be sacrificed also. By a curious chance you came upon her tresses. The man in the road was undoubtedly some friend of hers — possibly her fiance — and no doubt, as you wore the girl’s dress and were so like her, he was convinced from your laughter, whenever he saw you, and afterwards from your gesture, that Miss Rucastle was perfectly happy, and that she no longer desired his attentions. The dog is let loose at night to prevent him from endeavouring to communicate with her. So much is fairly clear. The most serious point in the case is the disposition of the child.”

“This child’s disposition is abnormally cruel, merely for cruelty’s sake, and whether he derives this from his smiling father, as I should suspect, or from his mother, it bodes evil for the poor girl who is in their power.”

“There has been some villainy here,” said Holmes; “this beauty has guessed Miss Hunter’s intentions and has carried his victim off.”

“Through the skylight. We shall soon see how he managed it.” He swung himself up onto the roof. “Ah, yes,” he cried, “here’s the end of a long light ladder against the eaves. That is how he did it.”
“But it is impossible,” said Miss Hunter; “the ladder was not there when the Rucastles went away.”
“He has come back and done it. I tell you that he is a clever and dangerous man.

“But Mr. Fowler being a persevering man, as a good seaman should be, blockaded the house, and having met you succeeded by certain arguments, metallic or otherwise, in convincing you that your interests were the same as his.”