Pierce by Ava Benton

A group of dragons traveled from Scotland to the New World a millennium ago to guard a treasure that none could know of. Their homes and lives are hidden from the world of humans and supernatural beings.
Until Pierce saves the life of a woman during an avalanche. And now he’s put the entire legacy on the line.
Jasmine isn’t your average girl. She’s a part of the fae. And now some damned dragon gave her his blood to heal her. Didn’t he realize that dragon’s blood is toxic to the fae?
His dragon brethren don’t care if she lives or dies—actually, they’d just as soon as uncomplicate matters and see her dead.
But that’s not so easy for her or the dragon that saved her.