The Best Horror Books of the 21st Century (So Far)

1. "The Road" by Cormac McCarthy - This book is about a world where everything has fallen apart and people are struggling to survive.

2. "Bird Box" by Josh Malerman - This book is about a mysterious force that makes people want to kill themselves if they see it. It was also made into a popular Netflix movie.

3. "Annihilation" by Jeff Vandermeer - This book is about a group of scientists who go into an environmental disaster area called "Area X" and find out things that they never could have imagined.

4. "The Hunger" by Alma Katsu - This book is about a group of people who get stuck in the mountains and have to do terrible things to survive.

5. "The Troop" by Nick Cutter - This book is about a group of boy scouts who go on a camping trip and things go very wrong.

6. "The Cabin at the End of the World" by Paul Tremblay - This book is about a family who is kidnapped by strangers who say that the end of the world is coming.

7. "Her Body and Other Parties" by Carmen Maria Machado - This book is a collection of short stories that are all different and all very scary.

These are just a few of the many great horror books that have been written in the 21st century. If you're looking for something new to read, these books will definitely keep you up at night!