Outstanding. An intensely sympathetic heroine thrust into the most horrific situation, by her own choice, in order to save her sister’s life. Clever plotting, edge-of-your-seat danger, twists and turns, and a very satisfying resolution. There are many villains, but none of them wholly bad; all are sympathetic in some way, and yet together they are participating in ruthless murder with smiles on their faces. The author demonstrates a keen sense of how individual people, however nice, can be swept up in the values of their society, no matter how horrible. This story rings true on a number of levels. I’m rushing right out to get the sequel.