Sands of Destiny — Ethel Lockwood

As Diane Connors approached the Arizona desert, pursuing Dallas Amherst -- the man her sister had jilted, she feared she had come on a fool's errand, even though she, herself, was in love with him. But once there, and with Dallas in her arms, Diane had to take a second look at love.

Even before she reached the edge of the desert, Diane Conners realized that she had come on a fool's errand, and that there was no turning back. For she had severed all family ties to pursue the man her sister had jilted at the altar, in the forlorn hope of comforting him and with undue confidence in the adage that "Misery loves company."