Late eclipses : an October Daye novel
(Book)

"The half-Fae private detective is once again run through the wringer when problems plaguing the San Francisco Fae community strike home on a personal level. First, in an unprecedented, unexpected move, the Queen of the Mists promotes Toby to countess. Given that the Queen hates her, it's quite obviously a trap, but not something Toby can refuse or avoid. Subsequently, several of Toby's closest friends are struck down through poison and illness, and she's accused of murder. Has an enemy from Toby's past resurfaced, or is she losing her mind? Physically, emotionally, and magically drained, faced with tragedy and despair, Toby's forced to deal with the long-hidden truth behind her Fae heritage."