The Chained Adept
by Karen Myers
Book 1 of The Chained Adept.
Penrys’s past is unknown, but she’s got a better grip on her future: find out where she came from, what happened to her, and how the unremovable chain around her neck makes her different from other wizards.
All she wants is a firm foundation for the rest of her life, with a side helping of retribution, and if she has to fix things along the way, well, so be it.