Devil at the Altar by Nicole Fox

Ruthless mob boss buys an innocent fake wife.
A kingdom of corruption—that is my birthright.
But before my father gives me the throne that’s rightfully mine, I must fulfill one condition:
I must find a wife.
Dani is the perfect target.
Innocent, beautiful, unsuspecting.
But vulnerable. Oh, so vulnerable.
She says she doesn’t need me.
But if there’s one thing I understand, it’s desire.
That’s the only weapon I need to bring her world to its knees.
So let the wedding bells ring.
I’ve found my fake wife.
And I’ll drag her to the altar if I have to.