A huge army of enraged zombies, skeletons, creepers -- generaled by 9 Momentuses and 9 Marlixes -- will invade the Frontier from the North (or East or South or West) on a specific day at a specific time. (preferably on a weekend so that every one can play). If players do not get together and defeat this motley crew, no one is safe to be able to go to the Frontier on their own. It will be too dangerous.If the players do not defeat the Enraged Army, the mobs will occupy the Frontier ... until Armageddon (about a week after the invasion)... when the Enraged army goes back to their home world. Leaving the Frontier a wasteland, by exploding TNT everywhere (at least on the surface).I think such a castrophic crisis... will be a fun way for players to work together to "Save the Frontier".