Morning comes softly / Debbie Macomber.

Enhanced descriptions from Syndetics:

Debbie Macomber is an international bestseller whose fans the world over have fallen in love with her inspirational and heartwarming love stories. In this classic tale of faith and trust, a shy librarian marries a Montana rancher--sight unseen!

A shy Louisiana librarian, Mary Warner fears she'll always be alone--so she answers a personals ad from a rancher in Montana. Never before has she done anything so reckless, casting the only life she knows aside to travel to a strange place and marry a man she's never met. But something about this man calls to her--and she knows this may be her very last chance at happiness.

Tragedy made Travis Thompson the guardian of three orphaned children--and determination leads him to do whatever it takes to keep the kids out of foster homes. When he decides to take a long shot on a personals ad, the results are surprising, and before he knows it, he has agreed to marry a mysterious Southern woman sight unseen.

It could be the mistake of a lifetime. But Mary Warner may be exactly what this broken family needs. And with a little faith, a little trust, and a lot of love, two lonely hearts might just discover the true meaning of miracles.