Book excerpt: Though Caroline Wallace can't have a family, she can still have a purpose. Becoming Simpson Creek's new schoolmarm helps heal the heartache of losing Pete, her fiancé, to influenza. Then Pete's brother arrives, trailing a herd of cattle and twin six-year-old girls. Jack Collier expected Pete and his bride to care for his daughters until he was settled in Montana. But bad weather and worse news strand Jack in Texas until spring. It's little wonder Caroline grows fond of Abby and Amelia. But could such a refined, warmhearted woman fall for a gruff rancher…before the time comes for him to leave again?