Can you keep a secret?

Night spell

Night had fallen and Lanterns lit up the city. The ponies stayed in a hotel next to Treaty's house. Twilight went over the rumors and facts that they were told of.
"Colts have gone missing, at night the sisters roam the streets and sing spells to hypnotize ponies into following them." Twilight says to herself. She noticed Flash was looking out the window. She decided to join him.
"What is it, Flash?"
"There's one of them in the cloak." He points out. She looks and sees the young pony flip her hoodie off. She and Ellei smiled at each other. The unicorn used her magic and sent out a signal that reached all of Maretropolis.
"This must be what Treaty was talking about"
"Yeah. . ." Flash nodded.
The unicorn looked up at their window and waved. Twilight generously waved back so they wouldn't seem suspicious.
"Ready Ellei?"
"As always, Scarlet."
"Scarlet??" Twilight questioned. That was her real name. The two looked up at the moon Princess Luna had just risen and began to sing. Ellei's voice seemed to echo in the ponies ears.
"We shouldn't be listening to this, Flash. Flash?" Twilight looked to see Flash had fallen asleep by the window, from the soft voices.
"Now the hour has come at last the soft and fading light has cross the west horizon and has bidden us goodnight, and what a lovely night it is to walk a moonlit field. To see the softer shade the harvest starlight now reveal. So why is it that now, when all is quiet and at rest when candles glow and all the world is at its very best, the ponies of Equestria should lock themselves away, to shun the moon and wait instead for Tia's sunny day~"
"What is this song? It sounds familiar." Twilight thinks aloud.
"Are we so wrong to wish that they would see things like we do, and are we so wrong to think they'd might love us too? Why shouldn't they adore us? Is not within our right?! We'll not be over shadowed, ours is not the lesser light! We've waited long enough now for them all to come around and though they all may plead and threaten, us sisters will stand our ground! And all will know the wonder of our dark and renewal ways when all the world is wrapped in an eternal lullaby. So say goodnight, at this the final setting of your life! Tomorrow dawns in flames, the nightmares have BEGUN!!" The two laughed maniacally at the moon. Twilight was stunned by their strong vocals and words. She hurried to bed and rested for the morning. The two sisters wondered into the woods and all was quiet till morning. . .