House Annath by Angel Black

Just behind the veil of our own reality lie the worlds of the Inhumans.
Ancient beings long since retreated from contact with humans, but now discovering keys to a past that show that human and
now vampire have not always existed apart.
Aggie believed in monsters. Her own father was more monster than man.
With a past like that, she had no way of knowing her true potential.
She had no clue how much she could mean to not just one but four other beings.
And these four others are going to learn what it’s like to be truly bonded to a Beloved.
The powers that come with it are unmatched, and the bond itself is something older and more powerful than the very houses they live for.