There was a lovely review for the first Volume of the Cirque Du Freak manga omnibus last week, on AMP: Asian Movie Pulse. The headline was: "Takahiro Arai brings the world of Cirque Du Freak to life with a wonderfully macabre aesthetic that homages manga series of the past." If you're in two minds about whether or not to give the manga a try (perhaps you're still hurting from the unfaithful movie adaptation...) this will hopefully help convince you that it's both faithful to the books, while at the same time being a glorious work of art in its own right. Click on this link for the full review:

https://asianmoviepulse.com/2021/01/manga-review-cirque-du-freak-vol-1-omnibus-2021/

And if you want to find out even more about the manga, including where you can buy it, check out the February issue of the Shanville Monthly newsletter, which has three separate posts devoted to it: https://www.darrenshan.com/news/shanville-monthly