The Farmer's Wife by Lori Handeland

In this prequel to the Luchetti Brothers Series, readers meet their youngest sibling and only sister, Kim, who has secrets of her own. Kim Luchetti fled her home at the young age of 18, swearing to never return and trying to forget the tragedy that had broken her heart. Eight years later, Kim comes home to see her ailing father and faces everyone's questions - especially those of the former boyfriend who shares her secret.

Available only in Romance 8 and 12.