Conduit by K.F. Bradshaw

Andrea is living the life she’s always dreamed of. Damea’s magic has been restored, she’s been appointed Royal Enchanter of Gurdinfield, and best of all, she and Cassie are finally together.But their perfect life in the City of Towers cannot last forever. Andrea and Cassie must journey to the neighboring Azgadaran Empire, a land struggling to adjust to the return of magic, to help secure a precarious alliance between old enemies. Soon Andrea will come to wonder if bringing magic back to Damea had greater consequences than she thought…ones she may not be prepared to face.