A Vow So Bold and Deadly

I got a sampler of this book and it is interesting and wish to read the full book. The Sampler had four chapters with the perspectives of four characters Grey, Rhen, Harper, Lia Mara. Wish to know who wins the war or whether there is the war of soldiers or with their magic. How Lia Mara thinks to be a good queen and the child who visited and what happens next is not known as this is a sample.

There are two kingdoms Emberfall and Syhl Shallow. Rhen is the prince of Emberfall and Lia Mara is the queen of Syhl Shallow. She killed her mother as she was brutal and arrogant to their subjects she wishes to be the good strong queen who thinks of the welfare of the subjects and she doesn't want to hurt the people in her kingdom and she thinks what the people think of her as she is not so brutal like her mother. Grey is the true heir of Emberfall who escaped from there and is on the side of Syhl Shallow. Will Grey become the king of Emberfall. Syhl Shallow is always ruled by a queen and they think they don't need a man by their side but doesn't know what will be the decision of Lia Mara on this as if he Capture Emberfall and be a man on the side of Lia Mara.in ruling Syhl Shallow and Emberfall together.