There Are Monsters Nearby
The day after Scar breaks up with Grian, the dead come back to life. Knowing that venturing out alone is a death sentence, the sudden onset of the apocalypse forces them to stick together despite the tensions between them. In the wreckage of the world, they're forced to survive side-by-side, coming to terms with the fact that—try as they might—there's no one they trust more than each other.
“Go!” Grian shouts as the monster charges, putting his whole force into the blow.
Scar watches, frozen stiff as Grian fights until blood and gore and viscera mark the creature up like a Pollock painting.
“What are you waiting for?!” Grian snaps when he finally notices that Scar is still standing there. He grips his weapon tight and attacks a final time, slamming the zombie down—good and dead—and standing panting over top of it, strained but victorious. He starts rushing from the scene, calling back for Scar over his shoulder. “Run!”
And in a way that’s as familiar to him as breathing, Scar chases after him.