The Mistress: A gripping and emotional page turner with a killer twist

I didn't mean to get involved with a married man - I had no idea he had a family at home. But by the time I found out about Helen I was head over heels in love with him. I would have done anything for Ralph... that is, until I found out what he was really hiding. The night it happened, I was standing on his doorstep, waiting for him to let me inside. Helen was at a parent-teacher conference and I was hoping this was the moment Ralph finally decided to end his broken marriage and be with me....