Brendan Cobb calls it tar, but there might be as many names for it as cities left standing. To some, it's known as filth, or blight. Others call it the Black God in reverential whispers. Whatever name it takes, the effects are the same. Cities left in ruins. People turned into monsters. Living infections with no known cure. The best anyone can do is avoid it, but even that gets harder the more it spreads. Brendan survives this waking nightmare by...