Skilfully written with very effective alternating of perspectives of police with those of ambulance officers. The medical stuff is interesting. The descriptions of people and situations have a ring of authentic observation. I enjoy the prominence of the female characters. Others on this review forum have criticised the idea of a woman impersonating an ambulance officer and looking for her missing child. I found that quite believable. People who have lost loved ones see them everywhere and it's not a long bow to draw to have them hunt them everywhere. The torture of the doctor at the end was plausible under the circumstances, although I did wonder at the use of adrenaline, but, then again, why not. The commission of a crime by the desperate mother was also believable; desperate crimes do happen, especially when the criminal has their perception manipulated. Like others, I have gone on to read one after another. I have purchased no. 7 but have not yet read it because I wanted to slow my consumption of this rare resource down. Instead I read another brilliant Australian novel by Stephen Orr - One boy missing, which was also utterly engrossing. So, now I am going back to Katherine Howell. I'm pleased to have stumbled over a number of Australian novels through links associated with Howell.