I wasn't a big fan of DI Gravel at the beginning of the first book but he grew on me and I liked him in this novel.
This is another dark and disturbing thriller, plenty of twists and some very graphic scenes.
It's a gripping and well written story, well plotted and with a cast of fleshed out characters.
Recommended.
Many thanks to the publisher and Netgalley for this ARC, all opinions are mine