A Highlander Bound by Oath by Kenna Kendrick

He broke her family, her future, her heart… Yet he is the only one she’ll ever love.
When Owen Elliott ignites a fire while trying to save a lass’ life, his world burns to ashes too. As the hungry flames devour more than expected, he’s doomed to hide in a monastery disguised as a monk, with a soul scarred with sins.

But when he offers a broken girl sanctuary, he learns that fate has a wicked sense of humor. For she’s the only one who lost in the fire more than he did…
After her father died in the same flames that had saved her life, Charlotte Routledge encounters an inferno on earth. Which, in her case, is being betrothed to a man who tried to assault her years ago. Determined to escape her fate and avenge the broken remnants of her life, she flees and hides in Scotland.

Little does she know that the man she wishes to take revenge on is the same one giving her shelter…
And she can never love the one who condemned her to misery…