His is a heart of iron
Embittered lord Alexander Fletcher must shelter a penniless mute in his ancestral home, Drayton castle.  Although he makes no pretense that he resents the intrusion, the woman stirs his heart into an unwelcome gallop.  He wants only to be alone and not to love another woman who, like his wife, might grow to hate him so much that she will take her own life.
...and she is slowly melting it
Lord Drayton's detachment only adds to Katherine Seymour’s distress of losing her voice.   But after he gives her a searing kiss just before he introduces the husband he's chosen for her—and whom she promptly refuses—she discovers his horrid secret.
...but someone is watching.
Only Agnes Cooke knows how Alex's insane wife died, and she will not hesitate to kill again in order to be the next Lady Drayton.  Watching Alex go out of his way to help Katherine regain her voice, however, is more than she can take.  This plan will require more than just laudanum and mercury....