The Doctor, Colgate, and a stowaway Twilight get stuck in a parallel world ruled by Discord. with The Doctor captured, Colgate turned older and forced as a slave, and Twilight stuck with her parallel self in an underground cave, how will they ever get back?

This is a sequel to : http://www.fimfiction.net/story/39053/A-lost-universe%2C-a-lost-child

I would appreciate comments on how i could better fix the story, but please no profound language.