Soul of Stone: Book I of the Cant'un Trilogy

This is the legend of the love of King Vonter of Cant'un, who is about to marry Samjya, a farmer's daughter. Unbeknown to him, two sorcerers battle each other to a supposed death, and the victorious, profoundly evil Fragir starts to move his ever-growing forces against the peaceful citizens in King Vonter's land.
The wedding gets cancelled as he has to ride out to protect his people. Meanwhile, the Queen to be, isolated in the castle under attack, embarks on an unsettling path of self-discovery; and a talking squirrel risks everything in order to help mortals, with fate-defying consequences.
This is Book I of the Cant'un Trilogy.