Spectyr (Book of the Order #2)

The second novel in Ballantine's series. In a realm of mystics and magic, the Order of Deacons stands between the here and now and the Otherside. Its mission is to protect the citizens of the Empire from malevolent geists--no matter where or when...

Though one of the most powerful Deacons, Sorcha Faris has a tarnished reputation to overcome, which is why she jumps at the chance to investigate a string of murders in the exotic city of Orithal. But it is there that her lover, the shapeshifting rival to the throne, is targeted by a cruel and vengeful goddess, unwittingly unleashed by the Emperor's sister.