The Dark Net (2017) is the new thriller from Benjamin Percy who - for many reasons - is on the 'must-read' pile. But we'll get to that in a moment. The Dark Net is a strangely 'classical' horror novel, in the Straub/King model, not, say, Poe. There's an evil rising in Portland, and a rag-tag group of people are drawn together to stop it.
Like a Straub or a King (or a McCammon or an F. Paul Wilson) there's a metaphysical element: a greater contest of Good and Evil taking place. It is implied that Portland is merely the latest battleground, but, unless our heroes band together... it could also be the last. If you know the genre, you know how it works, and can predict the properly embiggened and important ending.
While all the cosmic epic stuff happens up there (hand-waves), there's a lot of stuff happening on a more immediate, visceral level. The Dark Net is super-squishy, and properly downright terrifying. The monsters are monstrous and the people are worse. It is genuinely horrific in the true sense of the word: juxtaposing the uncanny and the unnatural into everyday life to get the reader recoiling in fear and disgust. Well done, really.