Unwritten Power-Agatha all along ff.

Layla Cassiopeia has no past, only power.
Left as a newborn in the depths of the wild woods, Layla was raised by magic and mystery. She has no family name, no memory of her origins, only the whispers of the wind and the pulse of the earth to guide her. But she is a witch and the forest has always protected its own.
Now, her brother wants to walk the Witches' Road, a dangerous path that only a few survive and none return from unchanged. His choice will unravel ancient secrets, test forbidden magics, and awaken a darkness Layla thought buried.
When the chance to uncover the truth about her birth finally presents itself Layla agrees to join him.
As the past claws its way into the present, and destiny tightens its grip, Layla must decide, will she claim her bloodline, or will fate steal it from her once again?