This is my first time reading Melissa De La Cruz, and it sounds like a promising story. A princess (I think I'm making a correct assumption on this) is hidden by living amongst villagers after the death of her king father. Her mother has wrangled a "queen's assassin" blood oath of protection out of her dead husband's right hand and now the oath is being carried by his son. In the preview provided, the princess and the assassin will have to team up to ward off death and destruction to the kingdom.