Zack's Story (Soul Mate #5)
Hilda Lorraine Graff

Two young adults sail to Charleston, South Carolina together; a young man from New England who has secured an apprenticeship with an elderly physician; and a young woman returning home, after spending years in Boston at an institution for the blind. What appears to be love at first sight is actually a harbinger of disaster.
Another young man, returning to Charleston after years abroad, finds that he cannot escape his past; and the indiscretion of five years past is all too fresh in the minds of some. When his life is threatened, only two people are in a position to save him, the doctor's handsome apprentice and the beautiful young woman, blind since childhood.
The question becomes, "If another man is pursuing the woman you love, how far should you go...how far will you go...to save his life?"