The Storm in his Highland Heart by Kenna Kendrick

A deadly storm, a murder mystery, and two lovers fighting for survival…

Davinia MacDuthy and her brother Thorkel never had an easy life. Their clan is now in peril, and she has no choice but to accept the marriage Thorkel has arranged for her. Yet, upon learning about her future husband’s brutish reputation, Davinia expects the worst.
Kadrick Macinroy once lost everything he loved. After the death of his wife and his twin babies in labor, he is a shadow of his old self. Pressured by his clan, he reluctantly accepts marriage with an unmet lass. But once he sets eyes on her, the fire in his heart awakens.
Soon after their first meeting, an eerie blizzard descends upon them.
Trapped inside the castle, their initial attraction is starting to evolve into pure lust. But as they battle with their inner demons, a horrific death is about to shake them to their core.
As the storm rages on, and their supplies are ending, time is running out. Especially when a serial killer is aiming to end their life. How will they save their people and their marriage if suspicion runs deep between their clans?
He had a storm in his heart that only she could tame…