At Tor.com Harper tagged five titles that get demon summoning right, including:
The Possession by Michael RutgerRead about the other entries on the list at Tor.com.
The second in the author’s The Anomaly Files, this book is equal parts absolutely horrifying and hilarious, largely due to Rutger’s incredibly deft and droll first-person narration. The Possession follows American myth and legend “explorer” (with only an underfunded and relatively unpopular YouTube show under his belt) Nolan Moore—the wisecracking, thoughtful, and genuinely delightful Indiana Jones we all need—as he and the gang explore the phenomenon of unexplained, freestanding walls in a picturesque small town in the Sierra Nevada mountains. I’ve never seen this extremely clever take on demons before, and I don’t want to spoil it, but it relies on the notions that 1), these mysterious walls function as a barrier, keeping demonic entities out of our world; and 2), reality is fundamentally an illusion, a constantly shifting amalgam pieced together by our brains rather than anything concretely real. So, what if demons could manipulate this perception, and entirely alter what reality even means to us? It triggered every phobic fear I have about not being able to trust my own mind, and I loved it. (So much that I had to stop reading the book at night.)
--Marshal Zeringue