In The Secret Path of Destiny, a young, disabled, German-American girl, named Isolde, and her destitute mother reach out for a lifeline being offered by a widower in the German town of Fredericksburg, Texas. The year is 1865, and the two travel from New York City through the aftermath of the Civil War. But another war is brewing, this time with Native Americans. And Isolde and her mother are heading right into the heart of Comancheria, the homeland of the Comanche.

It is not the Comanche Isolde fears, but her mother's new employer, who becomes her stepfather. Isolde realizes he is a cunning man who is not who he pretends to be. As the situation worsens, Isolde is forced to make a life-changing decision to escape; desperate, she seeks refuge with a Comanche Indian, who befriends her at first, but later joins a warring band of Comanche. Her malevolent stepfather pursues her across Texas, turning her life upside down. In the midst of her troubles, Isolde's faith sustains her, and she unexpectedly finds the love that has always eluded her. Eventually, Isolde accepts the difficult circumstances of her life and realizes that a person's destiny is often hidden from view because the path is sometimes rocky.

"Just about anyone can write a book, but only a good writer can write a good book. M. B. Tosi is a very good writer, and her books are truly worth reading."

-Jim Langford, author of The Spirit of Notre Dame and Quotable Notre Dame