The Dark Knife — A.F.E. Smith

Alyssia Gale has defeated the bad guy and returned to her old life - that's how stories are meant to end. Now she's faced with a far harder task: finding a way to be normal, despite her continued visions of a world she knows is real. She may be separated forever from her friends in Endarion, but at least she kept them safe. Or maybe not. Because fate isn't finished with any of them yet. An age-old pattern is at work, drawing them back together to finish what they started. And though Alyssia longs to return, if she does, not just the world but the lives of everyone she cares about will be at stake.