Angel and Demon

Bella Oxsterina is a product of a human-Demon an angel, so she is used to doing weird stuff. Yet after she gets her first book published and is rushed to England to meet with the said publisher she starts getting dreams. These dreams seem so real to her, and something tells her to follow them, and with the help of the voice inside her head, she starts looking for the demon named Crowley.
Alistair Kirkland, Angel, and head of the fiction department of Kirkland Books. He is known to be ruthless in both his work and personal life. Yet he fights with the voice inside his head, which he knows isn't his. He hates the demon voice inside him, and when he reads a manuscript that the demon is interested in, he decides to meet with the author and destroy their carrier.
Yet when these two meet, a spark is lit, and then the lives of both are changed. Yet when threats both past and now threaten them, can they come together with their voices in their head, or will they lose everything again?