Stay away from fire. Zombie AU. [Klance]

There are only 4 elementals in this world. That's right, only four. These people are wanted because they are the only ones that have these strange powers. One of the elementals have Earth and harvesting. The least powerful of the four. The 2nd elemental has Air and direction. The 3rd most powerful elemental. The 3rd elemental has Ice and Water. The 2nd most powerful elemental. And, the 4th elemental has Fire and Lava. The most powerful one out of the 4. And when they are hiding and now a Zombie Apocalypse comes into their lives, they need to gang up to fight but, the 4th elemental can't be found.