2 stars. The concept was cool but just not executed in a believable way. These supposedly devious and cunning sisters were fairly bland, completely predictable, and at times infuriating. Check out Kendare Blake's [b:Three Dark Crowns|28374007|Three Dark Crowns (Three Dark Crowns, #1)|Kendare Blake|https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/books/1469265712l/28374007._SY75_.jpg|42750582] series if you want something similar - 5 stars for that series.