To the rest of Panem, District Thirteen is long since cold and dead, a sometimes-smoking ruin unfit for any kind of life. Beneath the surface, however, it's alive and kicking. Underground networks of apartments, roads, and shops are built into the ground- an entire veritable city hidden from the capitol and protected by weapons left over from Thirteen's true purpose- not coal mining, but weapons research. A rebellion is in the works; for now it's very young, and very tentative, but perhaps someday Thirteen will once more rise up to rebel against the Capitol, and the only order that most of Panem's citizens have ever known.