Brothers To The Death was reviewed over on the Book Lover blog a while back, and seems to have rather taken the reviewer's breath away, literally, judging by the opening line of the review:

"Let's begin by saying I was left speechless for a few days but now, I think, I am ready to tell you about this amazing book and series finale."

https://booksserial.blogspot.com/2020/07/review-brothers-to-death-darren-shan.html

That's the sort of reaction you always hope for as a writer! For those unfamiliar with the book, it's the fourth and final book in my Saga Of Larten Crepsley series, which tells the story of Mr Crepsley's life across the two hundred years before he ran into Darren and Steve at the Cirque Du Freak. This one in particular holds a special spot in my heart, as it's the only one of my books that very nearly moved me to tears as I was writing it -- there's a scene near the end, where Larten faces the most devastating moment of his life, and I'd always start to well up when I was working on it! But I'd strongly recommend reading the first three books before you graduate onto this one, or it won't have quite the same impact...