The child spots the corpse and hides his face against Peggy, just before Dorian sets it ablaze, and Peggy's got her own gun out and on it till it's form is no longer entirely humanoid.

She keeps her gun out as they walk, eyes alert and watching the windows and doors. It's eerily quiet, save for the distant sounds of a city under attack, but Peggy's far too used to that. She listens for particular noises, that of the walking dead. She urges the boy to walk quickly, her own pace fast enough, and it's not for another few streets over that another jiangshi appears.

It's attempting to climb through a window, but it stops and turns its attention on the three living bodies coming towards it. It darts suddenly with aim for the child, but Peggy shoots it in the neck, and it stumbles.