Atlanta Bound by Lilith Saintcrow

Nothing matters to the walking dead but finding live flesh to chew on, and nothing matters to Ginny Mills except getting back to her family. Nothing matters to Lee Quartine but keeping his small band of survivors-including Ginny-alive. Upstate New York is overrun, other survivors are more of a danger than a help, and the rumors have begun. There's a place where organization and government still exists, a place where a cure for the zombie virus is underway.
The problem is, that place is Atlanta, and there's a hell of a lot of road to cover to get there. Hopefully, Ginny's family is safe. With a little luck, Lee can get them all south without anyone else dying.
But in the middle of a winter wasteland full of chewing, shuffling undead, hope-and luck-are in short supply.

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