Daughters of RuinK.D. Castner2016

Meet rumor with quiet, treason with cunning, and vicious with vicious. Rhea, Cadis, Suki, and Iren have lived together since they were children. They are called sisters. They are not. They are called equals. They are not. They are princesses. And they are enemies. A brutal war ravaged their kingdoms, and Rhea's father was victor. As a gesture of peace, King Declan brought the daughters of his rivals to live under his protection - and his ever-watchful eye. For ten years they have trained together as diplomats and warriors, raised to accept their thrones and unite their kingdoms in peace. But there is no peace among sisters, and all plans shatter when the palace is attacked. As their intended future lies in ashes, Rhea, Cadis, Suki and Iren must decide where their loyalties lie: to their nations, or to each other.

Titre original : Daughters of Ruin (2016)