Ok, so this particular book didn't appeal to me as much as the previous few. I had the impression that with two cases unfolding simultaneously, neither of them was described in great detail nor were they overly challenging to solve. Additionally, I was disappointed that Joe didn't feature prominently in the story. We really need more of Joe to add that extra charm and excitement. Another aspect that I didn't quite like was the frequent change in point of view to different characters. It sometimes made it a bit disjointed and hard to follow. However, despite these drawbacks, I still found the book somewhat enjoyable. It just didn't reach the same level of awesomeness as the others in the series.
The 5th Horseman is a book that seems to have a lot going on, but in reality, it falls short in many aspects. We are introduced to an "angel of death" killer targeting healthy patients in a hospital and a separate storyline of escorts being murdered. However, these two plots have no connection, which leads to a lot of action-packed but ultimately unsatisfying short chapters. The lack of plausibility, research, character development, and satisfying endings is frustrating.
This book would have been much better if it had focused on just one case. The constant use of pet names like "Butterfly" and "Angelface" between grown women and the excessive hugging, especially over a dead body at a crime scene, is ridiculous. The over-the-top expressions of pride and love followed by crying also become tiresome.
Overall, this is a terrible addition to the series and my least favorite so far. I can only give it ⭐⭐ or 2 stars.