THE RICH MAN'S BLACKMAILED MISTRESS
THE RICH MAN'S BLACKMAILED MISTRESS (3) by Robyn Donald: Kain Gerrard's aunt thinks her son's mistress is a gold digger because Sable Martin is a few years older and is about to receive a rather expensive ring. Now she wants Kain to find a way to end the relationship. When Kain's investigation turns up a rather murky past, he decides to blackmail her into becoming his lover, so his cousin will move on. Sable agrees only after he threatens to turn his findings over to the police. Then he learns the truth about her. These two have plenty of sparks, but the way the hero treats the heroine for most of the book can be off-putting -- which he himself acknowledges by the end.