My Brother, My Zombie — Rusty Fischer

Emma has only one guard shack left before she releases her brother into the zombies-only zone, or the Z-Zone, as the locals call it.

Along the way she keeps Sam docile with a plastic container full of raw meat and the only six commands he knows to obey. He doesn't understand what's about to happen to him, but she does.

If only letting him go was as easy as saying goodbye.