Gideon starts out strong. I found the author's central conceit -- the existence of a semi-rural Midwestern town, whose residents appear typical in most ways, except for their practice of a sui generis, almost-Christian-like witchcraft, and their central belief that they alone stand between humanity and the encroaching shadow world of demons -- quite compelling.
But things started to go downhill once the story progresses from the nineteenth century to the present day, particularly after witch-in-exile Lauren Reardon returns to the village after her father's death, to learn more about the familial roots that had been hidden from her.
The novel quickly becomes nothing more than your typical, plot-driven horror fare. The thinly drawn characters, nearly all of whom (including Lauren) are unlikable, engage in a series of increasingly implausible actions, all culminating in ... well, something. (I started to skim toward the last hundred pages, because I honestly just did not care anymore, but had invested too much to abandon the story completely.)
I will gladly give Alex Gordon another chance, because there was enough in Gideon, her debut novel, to make me think that future efforts might be better. But it will require her to focus more on character development, and "world-building" (present-day Gideon, for example, fell entirely flat, as did the ever-encroaching shadow world at Gideon's edge), rather than just horror visuals and the machinations of plot.