I think perhaps the transition between the two sections of the book - mental breakdown to the truth is out there - could have been better: there's a long build-up and a too-sudden shift. And while Alison is portrayed as understandably reserved and lacking in trust, there are times when her secrecy seems more of a plot vehicle than likely behaviour. But these are nit picks, really. I thoroughly enjoyed ''Ultraviolet'' and I love the way Anderson writes books using ground very familiar to her readers but manages to make them utterly non-formulaic.
My thanks to the good people at Orchard for sending the book. We have a review of the [[Quicksilver by R J Anderson|sequel]].
[[Jigsaw by Garry Kilworth]] also blends a mystery thriller with sci-fi and the supernatural. So does [[Verdigris Deep by Frances Hardinge]], whilst playing with words in a way any synaesthete would love. I think they might also like [[The Poison Garden by Sarah Singleton]].