Showing The Hell You Say by Josh Lanyon

Demons, death threats...
and Christmas shopping.
It's gonna be one Hell of a Holiday.

In the third in the popular Adrien English series, the "ill-starred and bookish" mystery writer has to contend with a Satanic cult, a handsome university professor and his on-again/off-again relationship with the eternally conflicted LAPD Detective Jake Riordan.

And, oh, yes, murder...