The Kindly Ones by Jonathan Littell
(Just one book this month, but all 1000 or so pages!)
This is a devastatingly good book. Disturbing in it’s core theme, and often difficult to read comfortably - this is a book that made me question myself on many levels, even down to the point where I was unsure of whether or not I should be enjoying reading it. This book has received prizes and awards internationally, and plaudits from the most respectable reviewers, and rightly so; this is one hell of a book.