It's two a.m. You think you're alone. You think you're safe. Think again. Neurosurgeon Noah Archer's Enlightenment Project opens it doors to dark spirits once again, in the third spine-chilling installment of the critically acclaimed supernatural thriller series.

Lola Strickler is three months pregnant, with a longed-for baby. She should feel happy. She should feel safe. But she's keeping a secret from her husband.

Something has started watching her. Something malevolent. He--it--stands in the street each night, and stares up at her bedroom window.

And Lola might not know it yet, but he's already found his way in.

Neurosurgeon Noah Archer's work with exorcist priest Father Perry has taught him to believe in the darkness. When Lola calls him for help, he knows she's not going mad--she's being haunted.

But it's not just Lola keeping secrets. There are dangerous things her family has been keeping from her. Soon, Noah and his team are racing against time to defeat an unimaginable evil . . . and not everyone is going to come out of it alive.

Fans of Stephen King, Riley Sager, CJ Tudor, Robin Cook, Alex North, The X-Files, and The Exorcist won't want to miss this chilling series inspired by cutting-edge scientific and medical research, which blends supernatural suspense with horror.