Dark Lord-Book 2 in the Dark Birthright series by Jeanne Treat
It's 1637 in Scotland. Dughall is settling into his new role when the King imposes an Anglican liturgy book on the Scottish church. Protests and riots plague the realm, forcing lords and commoners to take a stand. Dughall and Gilbert are placed in precarious positions, torn between loyalty to the crown, their families, and zealous subjects. To complicate matters, Dughall claims the sword of Red Conan and inherits the curse that comes with it. Challenged by real and supernatural enemies, he must fight to continue his line. Conflicts pit brother against brother and father against son. The National Covenant is signed and war breaks out. Tempers run hot and actions are rash. To maintain order, one brother must take Blackheart's place. Which raises the question. Who shall become the Dark Lord?