Rehoboth (Heartsong Presents)

is book #291 of the Heartsong Presents line.
==Book Description==
Katie Colter never expected her father to die; neither did she expect to abandon her home among the Comanche to live with her uncle and aunt at Fort Davis. Leaving behind Lone Eagle, the warrior whom she was to marry, Katie sets out to begin her life anew.
Alone and miserable, Katie struggles to learn the ways of her own people, especially their strange God. With her uncle and aunt she finds love and acceptance and a special friendship with Sergeant Peyton Sinclair.
But Lone Eagle has not forgotten his intended bride. He demands her return to the Indian village as his wife. Lone Eagle's cries for vengeance, for justice, are heard throughout the territory as Katie faces the ultimate test of her loyalties.
(Description from paperbackswap.com)