*SECONDHAND* Forbidden Legacy by Diana Cosby (Forbidden #1)

A betrothal neither wants . . . a passion neither can resist.
 
When the English murder Lady Katherine Calbraith’s family, she refuses their demands to wed an English noble to retain her home. Avalon Castle is her birthright, one she’s determined to keep.  After Katherine’s daring escape, she’s stunned when Scotland’s king agrees to allow her to return to Avalon, but under the protection of Sir Stephan MacQuistan . . . as the knight’s wife.  To reclaim her heritage, Katherine agrees. She accepts her married fate, certain that regardless of the caliber of the man, Stephan may earn her trust, but he’ll never win her love.
 
One of the Knights Templar, Stephan desires no bride, only vengeance for a family lost and a legacy stolen. A profound twist of fate tears apart the Brotherhood he loves, but offers him an opportunity to reclaim his legacy—Avalon Castle. Except to procure his childhood home along with a place to store Templar treasures, he must wed the unsuspecting daughter of the man who killed his family. To settle old scores, Stephan agrees, aware Katherine is merely a means to an end.
 
The passion that arises between them is as dangerous as it is unexpected. When mortal enemies find themselves locked in love’s embrace, Stephan and Katherine must reconsider their mission and everything they once thought to be true . . .