Fifth book in the Heart of Texas series (also known as Sons of Promise): Lonesome Cowboy, Texas Two-Step, Caroline's Child, Dr. Texas, Nell's Cowboy, and Lone Star Baby. Nell's Cowboy is the book in the series in which the mystery of the ghost town of Bitter End is finally solved.

Description from the book back cover:

Nell Bishop, widowed mother of two, is turning Twin Canyons into a dude ranch. Her first guest is Travis Grant, an Easterner known for his children's books. Nell's kids are crazy about him, and Nell could fall for him herself. But it's too soon to be thinking of love and marriage again. Not only that, Travis seems intent on stirring up the town - uncovering the mystery in its past.

SONS OF PROMISE: They're rugged, proud and just a little sassy! They'll make you laugh and they'll make you cry. Meet them all in Promise, Texas.

I have read many books by Debbie Macomber, and this one was the least interesting. It really seemed to drag, had fewer characters and story lines than the other books. Nell and Travis, the two main characters of this book are not quite as interesting as the other match ups that usually populate her novels. The mystery of Bitter End does get solved, but that part of the story was really slow. Also, I felt that the minor characters like Nell's two children and her mother-in-law were not very well drawn.
I know that Debbie Macomber fans are very loyal, so I am sorry if this offends some of you, but maybe I have read too many of her books with the same plot.

I Loved this book I could not put it down. This is a wonderful story at a second chance of love. I would love to return to Promise. I have over and over with the whole series. The stories are wonderful and you can't get enough.