Twilight Sparkle and The Unicorn's Stone

“Oh my God... You don't know . . . you don't know . . .” Cadence ran her fingers through her hair, fixing Twilight with a bewildered stare.“You don't know what you are?” she said finally.Filthy Rich found his voice.“Stop!” he commanded. “Stop right there, miss! I forbid you to tell the girl anything!”A braver man than Filthy Rich would have quailed under the furious look Cadence now gave him; when Cadence spoke, her every syllable trembled with rage.“You never told her? Never told her what was in the letterCelestia left for her? I was there! I saw Celestia leave it,Rich! And you’ve kept it from her all these years?”“Kept what from me?”said Twilight eagerly.“STOP! I FORBID YOU!” yelled Filthy Rich in panic.Spoiled Rich gave a gasp of horror.“Ah, go boil your heads, both of you,” said Cadence. “Twilight... You're a witch.”(The story's complete, but the rewritten is cancelled. Since I just used the original books scenes, but replacing the names, I may redo the whole story but on chapters this time.)