Four Winds by Lisa T. Bergren

Book 2 of Rivers of Time: California

Summary:

Zara Ruiz has never been so happy to have failed at something in her life---trying to return to her own time. In Javier de la Ventura's arms, she knows that 1840 is where she belongs...where she's found true love and family. 

But then the ranch is viciously attacked, and she and Javier's little brother are kidnapped and she finds herself at the mercy of the FOUR WINDS, no longer certain where her journey might end.

Opening Lines:

Javier Laughed and shook his head as we reached the top of the sand dune, Centinela loping in a wide circle around us. "I do not know if I can court a girl from the future and have a pet wolf," he said in Spanish. "That is a lot to ask of one man."

I gave him a half-smile, not yet ready to admit it--that I might be his girlfriend, that I might be here to stay--still trying to accept that it seemed I didn't really have another option.