The Thief's Talisman

A complete adult urban fantasy trilogy. 

Raine Warren, half-faerie changeling and master thief, has one mission: keep her family safe from the faeries who abandoned her in the human realm. But when Faerie comes knocking, claiming she's descended from Sidhe nobility and set to inherit an unexpected legacy, she's dragged into the realm she spent her life avoiding.

The Thief's Talisman series takes place one year after the Changeling Chronicles. If you want to avoid spoilers, I recommend reading Ivy's story first.