According to Philippa Ballantine's website, pjballantine.com, the story will go something like this:
Though one of the most powerful Deacons, Sorcha Faris has a tarnished reputation to overcome. She and her partner, Deacon Merrick Chambers, find themselves chasing down rumors of geists, but long for a return to real action. So they jump at the chance to escort a delegation sent to negotiate the terms of the Emperor’s engagement. Their destination: the exotic city of Orinthal.
But a string of murders has Orinthal on edge, and Sorcha and Merrick are asked to investigate. Meanwhile the Emperor’s sister has unwittingly released a cruel and vengeful goddess, one who it bent on destroying her enemies, including the geistlord who resides inside the shapeshifting rival to the throne—Sorcha’s lover….
Do not be afraid to check it out! :)