https://www.amazon.com/gp/product/B01KYZN00W/
Part Two Vampire's Mage Series.
A web of secrets. Bloodthirsty demons. A new nightmare.
Humans are going missing all over the city. Bloodthirsty shadow demons are attacking, and the Brotherhood want to return to the old ways to control the chaos.
Digging deeper into these sinister new threats, Rosalind once again joins forces with Caine. But the sexy incubus has been keeping some major secrets from her—secrets that hold clues to her own history. And as Rosalind uncovers the truth about herself, she realizes she has to risk her sanity if she wants to save humanity.