Student or Learner
This is words of the Bohemia's prince, who is threatened by a woman before his marriage to another woman, to Sherlock Holmes.
I don't clearly understand the last sentence.
"Threatens to send them the photograph. And she will do it. I know that she will do it. You do not know her, but she has a soul of steel. She has the face of the most beautiful of women, and the mind of the most resolute of men. Rather than I should marry another woman, there are no lengths to which she would not go—none.”
Does it mean "she will do anything, if I marry another woman"?
Thank you in advance