The Sorcerer's Daughter

The third stand-alone Shannara novel in the Defenders of Shannara series, following The High Druid’s Blade and The Darkling Child, easily accessible to new readers of epic fantasy.

The daughter of a reviled sorcerer, Leofur is nothing like her dreaded father. When her life-partner, Paxon Leah, leaves on a dangerous mission, Leofur protects Paxon’s sister. When she is abducted Leofur is forced to choose between saving Paxon from a mission gone badly awry, or hiring the services of the best tracker in the world to go after her life-partner’s sister.

This was a good stand alone book by Brooks.
His former works for me time and time again.
If you are a fan of his this is a must read