Please, please, please no.
The last book was decent, only because compared to the previous couple it looked like a literary masterwork.
But that demon.god/whatever book 3 story was the beginning of the end for the book's quality.
I don't think they will go that far as in the book,
but the line Deb said about being possessed made me raise my eyebrows,
then I find that pic of the horns..... I mean those two things, it feels like they might even at least touch on the subject of the Demon, the main bad guy of the season is the Russian mob guy,
but they could make the whole demon thing part of one episode at least,
that altar with the horns and the candles looks too suspicious