Of Mice and No Men (Part 1)

I have been meaning to run this for a long time, and I got the chance to start it off the other day. For a long time it has been referred to as the "mouse game" but for anyone reading this that doesn't know me you might not know what's going on. So imagine that all humans everywhere disappear for no reason, and mice and a few other rodents suddenly become sentient and conscious beings, walking on two legs and creating civilizations of their own. That is the premise of this setting. Most "people" don't know what humans where and can't read human writings, and few have seen human books at all. They are simply called the "Great Ones the Came Before" and where thought to have been a bit taller, not really as tall as humans really are. No one really knows how long humans where gone or what happened, there are just relics and evidence that they existed, their palaces and grandiose dwellings, and technology. I'll have to post another post as a primer so some of the things and places mentioned will make more sense.