Dead Inside, Do Not Enter: Notes from the Zombie ApocalypsePost Secret meets World War Z in this chilling vision of the fallout following a global zombie pandemic. A gradual mutation of a virulent strain of super flu gives rise to millions of the undead, who quickly overwhelm treatment facilities and swarm cities around the world, leaving survivors on their own against a legion of the infected. This chilling story is told through the scraps of paper, scrawled signs, and cryptic markers left by survivors as