The Outsider

This isn't one of King's major-known books, but in my opinion, I think it compares. There's some graphic descriptions/scenes (esp involving the kid's murder), but the mystery and horror aspect is so RAW and DISTURBING and fucking CREEPY (pardon my language but I cannot adequately express how terrifying this novel is.) King consistently writes books that are weird and out there and unsettling, and this one stood to take the place next to his popular books like The Shining, It, Misery, and so on. I don't hear too many people talking about this one, but there's also a TV show mini-series on this I've yet to watch. Now I think I will. Truly a mind-boggling mystery and visceral horror I LOVED reading. The characters are also all well fleshed out - as usual King has a lot of them, yet each plays a part. And the “entity”/Outsider itself...nightmare stuff.