Talk:Acid Fog/@comment-24670104-20141011211534/@comment-24670104-20141012132634

I thought that at first but I thought if that's the case, it either should be everywhere all the time or it should've gone in the 97 years since the war. My best theory is the Grounders somehow created it and used it as some other sort of warfare. It could be similar to the virus. The horn alerting the Grounders of the fog so they don't get affected by something meant to kill the enemy.