The Higher Filters

The Higher Filters (THF) are barriers set between worlds. During the creation of Fireball it is believed that endless numbers of worlds were created in a short amount of time, and that there were no boundaries between them. The many different creatures of the worlds came in many different sizes, and a creature of immense size would sometimes walk into a world of miniature in comparison and stomp a whole city to dust in a step or two. It was chaos, and at some point The Higher Powers were assigned the job of getting the worlds under control.

The Higher Filters can be broken however, and should and individual succeed in this, they can enter another world of lesser power.