Twenty years ago, mages fought for their survival against the Surrogate, a hive-minded robot army that consumed everything in its path. Now, a trio of apprentice mages must cross the ruined landscape to deliver a magical cure to a remote town. But the would-be heroes aren't exactly of the same mind: Charris is a hotheaded fighter with elemental powers; Trinh is a shy mage who can literally turn invisible; and Ursa is a healer with more power than she lets on. Can our mages stop bickering long enough accomplish their task? And is the Surrogate really defeated?

Title from indicia. "Roar." Portions of this book were previously published in The Castoffs, Vol. 1, digital issues #1-4 and The Castoffs, Vol. 1, print issues 1-4--Indicia.