The star couple at their school, Treena and Dresden expect to get matching, high numbers at their first adult rating ceremony, so the actual outcome is something of a shock that upsets their perfect lives. In many ways, the premise of this book reminded me of Sarah Negovetich's Rite of Rejection, featuring a heroine given a low score by a supposedly infallible system, and then going on to become the face of the revolution. I have to confess I wasn't a massive fan of Treena, who has dedicated her life to getting a perfect score, and who thinks mostly of boys even in the face of death (the number of times she has to be rescued is also a bit worrying). However she does wise up and start fighting eventually, and overall this was a quick and diverting read.