This is my favourite DCI Ryan book so far. It was the first book since the apprehension of the religious circle that spanned books 1-3. I've really been looking forward to what the books would look like once that plot was done and I wasn't disappointed. 

The main plot was brilliant! The team up with MacKenzie and Lowerson was great. Their dynamic is one of my favourites. On par with Ryan and Phillips. I enjoyed getting more involvement from Ryan's boss, Chief Constable Morrison. She grounds the investigation, bringing the politics, budgeting and other constraints in that keep the investigation feeling realistic. There was less of Ryan and Anna, which I appreciated. Their relationship still feels a bit rushed for me, but as the books go on, they feel a little easier to believe. The ending was fab and made me pick book 5 straight up. 

Since this is a mystery series, I don't feel too disheartened when I can figure elements of the plot out before they happen. This series is such a cosy series and I'm just here for the ride.

Onto High Force...