Luna's expression didn't shift. "I am a keeper of dreams. I tend to know a great deal." If it wasn't obvious already who had told her, Luna saw no need to implicate Washington. South would doubtless figure it out before long anyway. Besides, it wasn't him she wished to discuss.

"But I agree - this matter should be between the two of you, if 'tis to be brought into the open. I have a sister myself...and I know what you will have to live with now either way." Granted, she hadn't actually killed Celestia, but the betrayal was certainly a good deal more deliberate than South's had been.