Excellent. Three stories a whose tracks changes simultaneously. The three sisters Mercy are as different as night and day but eventually, after a forced cohabitation, and to appreciate and love. Their exchanges are funny especially between Willa and Tess, two strong heads that do not let count and who were raised totally differently. They will ignore their prejudices to be able to accept (one was elevé in Los Angeles and the other in a ranch, so obviously, lifestyle not the same thing ...). The suspense is very good: there are even two in one. One begins to love Montana, rough and wild country. The life of ranchers is very well described. A very very good Roberts.