SpoilerI'm actually concerned that show Twilight is becoming increasingly social and close to her friends due to Character Growth - and that's going to blur some perceptions in people's heads.
I don't think anything needs to be cut, but I do think your next move has to be a good one. I think three chapters to fully set the scene and premise is about right but something needs to happen in the next one. Some... acceleration. The results of the ritual, perhaps, could be an extremely debilitating long-term illness or the beginning of Twilight's mental degeneration rather than just 'wake up fine with a lecture from the Princess'.