Chatterbox: Inkwell

So, basically, i'm writing a book! Yay!!!

okay, so, the plot is that 200,000,000 years ago, there was an terrible Evil that came from another Realm (dimension). they were called the Sparkling Rainbow Unicorns. wait.... sorry, wrong script, that was the comedy one. they were called the ShadeMasters. they conquered the world of Avortoth. Their rule went reletively unchallenged for about five thousand years (well, except for a few people who spoke up and were instantly disintegrated) until, another group came from a different realm. These people were called the Mages of Light. they overthrew the ShadeMasters and took control of the Realm. they made Gateways to all(?) of the other Realms. now, for a very long time they ruled the Realms well, but reletively recently (about 3000 years ago) they became evil and corrupted by power. until now they went unchallenged  (again, except for a few people who spoke up and were instantly incinerated) because the only mages were the Mages of Light(now called the RealmMasters or -secretly, between civilains- the DarkMages.). now, in the year 200,000,278 PSM (Post ShadeMasters) new mages came into their power. these mages are but teens. One is a squire of Kelddath Darkmire, a DarkMage, one is the lost daughter of that same DarkMage, one is a librarian in a secret rebellion (secret because, well...fear of incineration), a orphaned thief who may just save them all, a boy who can't remember his past, and many others. nobody really knows anything about the time before the ShadeMasters, so that may become a major plot point.

Aright, so, guys, any ideas for world development? it's a prreettyy small multiverse at the moment.