The first story in "Wool" caused such a demand that the rest were published in 6 months. The first story is stark, claustrophobic, alluding to the vast genre of post-apocalyptic fiction without being derivative of it. Unfortunately, the next four volumes don't quite hold up to that level of narrative richness. As the society of the Silo is mapped out, and its secrets revealed, the mystery vanishes and the straight-forward problem-solving that's left is quite enough to compensate for the generic quality of the characters, and the well-trodden 'Vault Revolt' story. A fun read and a good yarn, but one that doesn't quite live up to its initial potential.