Quill Ears & the Other Earth

Four young adults enter another reality that seems like another version of earth. The above world is paradisal without any stress or problems, but the below world harbors a world of Masters and their enslaved. Allying themselves with a small mammal, a dwarf and two freed slaves they form a group which must find a way to deliver this world. It involves both finding the surprising weakness of the Master Race and summoning something from within themselves.