Spirit Magic — Robyn Wideman

Hanna loves her life on the Lady of the Evening. Delivering cargo across the known worlds and hunting pirates was a perfect life. But when her grandfather is killed, Hanna must go into the wilds of Northern Solotine to discover what happened.
She discovers a plot that threatens the world as she knows it as she's thrown into a world of magic and danger far beyond any simple pirates.

When Thorodd Stoneblood, her grandfather, is killed by a mysterious assassin, Hanna discovers that her own life is bound to a fate she couldn't have imagined. Faced with the understanding of an unknown past and a coven of power hungry witches who will stop at nothing to see her dead, Hanna struggles to overcome the adversities of a magical world she never knew existed.
With the tide of danger rising around her and the driving need to uncover the truth, Hanna discovers that it won't be enough to be a warrior. In order to survive, she will have to become something more…

Can Hanna defeat her mysterious new enemy? Or will her legacy end in the same manner as the Stoneblood lines always do… in bloodshed?