Faed to Black - Sarah J. Sover - Bog

It started with the slaughter of a princess and ended with the death of a serial killer. Or did it? Gwendolyn Evenshine, the fairy godmother who hunted down the murderer of Princess Francesca, was born a Seelie royal. But when you're fifteenth in line for the throne, nobody cares if you turn your back on courtly life to start a PI firm with your best friend. Gwen's attempt to move on fails when members of her family start dropping dead. Her place in the chain of succession jumps to fifth in the flap of a wing. If she doesn't figure out who is targeting her family, she could be next. Or worse, she could become queen.
Chessa Moon, the intrepid pixie crime blogger turned PI firm partner was nearly a victim of the Brain Scraper. After everything they've been through together, she has no intention of losing her best friend now, even if that means flying straight into the middle of a war to pull Gwen's stubborn ass out.
Faed to Black goes where Fairy Godmurder didn't, into the depths of the dark forces at work within fae society, and it answers the ultimate question: Why was the princess really killed?