Seeing things most people can't comes with its disadvantages.
As the Wingmaster of the Aslarian army, Evrard can walk in the Melody—a mirror realm that overlays the whole land. Unfortunately, such abilities come with a whole slew of problems. Personalized targeting by enemy mistbenders. Choking mists. Echoing memories. It's a lonesome sort of war in the Melody, which few know about and fewer can enter.
Evrard doesn't mind terribly much. He's used to being alone.
But when a new song carries proof of another walker in the realm, Evrard knows he must find her. Even if she's surrounded by mist.
Even if his enemies are using her to lure him into their power.
He's not about to leave any walker of the Melody in their power.
Especially when that walker is his twin.