NECESSARY AS BLOOD is not for the faint of heart. It deals with the dark side of human behavior like racial problems and child exploitation. Through it all, Gemma and Duncan lean on each other for help and support. What I love about this series is that each case is a standalone but everything else is continual journey. It’s like getting a snapshot of their daily life with each book. The regular secondary characters continue to grow but young Charlotte will quickly grab your heart. She is such a scene stealer! NECESSARY AS BLOOD is a dark story but Ms. Crombie treats the victims with dignity. My only wish was for an epilogue with true justice for the victims. However, the book has wonderful changes in Gemma and Duncan’s relationship that are both romantic and sweet. Ms. Crombie’s series continues to evolve and I can’t wait to see what the future holds.