I recently finished an adult horror novel that was easily one of the best things I've read in a while. It's called Unwanted (written by Kristina Ohlsson) and is the first in a trilogy. Unfortunately, my library doesn't carry the other two books so I am considering purchasing all three online.
I'm gonna say right off the bat that this book feels like horror done right. Without spoiling any major plot details, the story starts with a six-year-old girl being abducted on a busy train in a Sweden station. The team of police officers think this is a case easily solved at first, but as the story unfolds it becomes something much more horrific than a simple custody dispute.
The book is about 350 pages long and every single page is beautifully written. It's complex enough to make you wonder, the plot is unpredictable and full of suspense, the characters are distinct, memorable and all of them have depth- even the many side characters- and it has enough darker material to catch anyone's interest. If you're at all into horror and can handle some mature themes, I would definitely give this book a try. My faith in literature, after subjecting myself to some awful YA novels in the past few months, has been restored with this masterpiece.