A Tale of Ice and Ash by Katherine MacDonald

“Mirror, Mirror, on the wall, who will come to save us all?”

Five years after her stepmother tried to have her killed, Eirwen has built a new life in the woods. Far from the princess she was meant to be, she is now a skilled treasure hunter and master of the Dwarven underground.
Eirwen’s peaceful existence is shattered when she crosses paths with Cole, the son of her enemy, and a thorn in her side growing up. Eirwen learns that though she escaped the evil queen’s clutches, the kingdom she left behind has suffered. Together with her adoptive family, she raises an army to restore her rightful place on the throne.

But something is stirring Under the Mountain, a centuries-old secret begging to break free…