"..good to catch up with a few of the old favourite characters..."
Temperance Brennan is not in a good place. She is recovering from surgery to deal with an aneurysm, she is still in shock after the murder of her old boss, Larabee, she definitely has huge issues with her new boss who is all about her own self- aggrandisement, and her ongoing relationship with Ryan is moving forward but to where? Her new boss, Dr Margot Heavner is closely allied with Nick Body, a leading internet figure advocating no vaccination of children.
Brennan is sent photographs of a mutilated body but with no names of either victim or sender, She decides to follow these up with the help of retired cop Slider who is now working on cold cases. Without the backup of her department and consequent scientific information she is forced to rely on the help of friends. This is definitely a risky adventure as it could all backfire on her and her friends. When the disappearance of small children is also thrown into the mix Brennan's determination to nail the perpetrators is solidified.