Spell Forgers. Spell Keepers Series, #3

Power can be forged. Control cannot. Hazel Valeran knows what broken magic costs. Once a Spell Caster, now hunted as a deserter, she survives by fixing wards no one else will touch and staying hidden. But when the Veyra marks her for capture and an old ally unlocks a vault that should've stayed sealed, hiding is no longer an option. Across the coast, dangerous seals are breaking. Someone is rewriting spellcraft, turning wards into weapons that strike from a distance.
If the Veyra succeeds, no city will be safe. To stop them, Hazel must return to the ones she left behind:Nate, who refuses to follow broken orders. Oriana, whose alchemy can heal or kill. Darian, who knows how fast a lie can spread. Together, they face a choice that could reshape magic forever. Because once spells are forged for control, there's no undoing what comes next.