Ignoring guards and servants, Princess Cadence entered her bedroom, slamming the door behind her. She walked to the mirror and levitated a silvery brush. As she attended her mane a small, quiet laugh escaped her and slowly it turned into a devilish chuckle.

"Easy. Far too easy..." she said, her eyes glowing a menacing green. "This day has been just perfect. For a second I was worried that little blabbermouth may ruin my disguise but luckily my performance fooled them all. Even Celestia believed my crocodile tears! HA!"

She got up and start prancing across the room. "This plan is going flawlessly. Much better than the original idea. Taking the place of Princess Luna could have worked but it wasn't a plan without risks. Celestia knows her sister far too well. Fortunately, my spies were able to find about Celestia´s precious niece and even she is able to cut the bride some slack on her special day. If I make any mistake I can blame it on stress. And so far, it was working. Everypony believed I was the Princess and those who could notice were too distracted by the fake threat I sent. Everybody is too busy looking for threats on the outside, ignoring the real danger was already inside. It was perfect! or it was until Twilight Sparkle appeared. She almost ruins it all. Wonder how she saw through my disguise...bah, who cares? She is no longer a threat to me! I have more important business to attend."

She moved next to a mannequin of the groom and magically removed the hat. "I´ve to be the lucky bride. Poor pathetic fools, they have no idea. While they are all busy looking at my lovely dress, my changelings will invade this country. We´ll take over Canterlot first and then all of Equestria! Not a single pony will able to oppose us. A new and bigger colony will be built over the ruins of the castle and I shall rule over every stallion mare and colt! MUAHAHAHAHAHAHA!!!"

Nobody in palace heard her maniacal laughter, her nefarious plans were lost forever in the marble hallways.

****

Below the capital city, in the long forgotten crystal caves, two ponies who see each other as sisters, bonded by friendship but not love, shared a hug.

"I´m so glad to see you´re all right Cadence," Twilight said.

"Thanks for finding me, Twilight."

"But there´s something I don´t understand. Why did she locked you here instead of you know, get rid of you?"

"Please, don´t give her ideas. Besides even if she wanted to she probably couldn´t."

"What do you mean?"

"Because I´m immune to her magic. The Changeling Queen is able to control the minds of others but her spell is useless on alicorns. That´s why she didn´t attack my aun directly. She locked me here because she couldn´t control me," Cadence explained.

"That must be the reason why my friends believed all her lies."

"Partially. The Changeling Queen disguise is almost perfect, nopony would notice something is off unless they were paying attention. And she chose the perfect time to impersonate me. But you didn´t fall for it. You were able to see the truth. You were always good to pick up small details, Twilight," Cadence said, posing a hoff on her shoulder.

"I gues..."

"Now we need to hurry. I´m worried for Shining Armor. She must be using her mind control spell on him constantly, it´s the only way she could fool him. My poor Shining. He must be suffering so much, trying to understand what is that awful feeling he has when he is near me..."

While Cadence pondered about her soon to be husband fate, Twilight looked at her reflection, spread across a dozen gems. She knew something was wrong with Cadence the second she saw her but it was just her natural attention to details, or there was something more. Did the Queen magic just failed on her and it´s so, why? Twilight couldn´t help but think there was something more about this, something important about herself...

"Twilight! I think I found an exit! Hurry!"

"Coming!"

This was not the time for such thoughts. Twilight needed to hurry to save her brother and all of Equestria. This was different from the other threats she had faced before. Not only her family was involved but she no longer had her friends with her. But she still had Cadence. She was tired after being prisoner for so long but she didn´t give up, doing her best to push a mine cart. Twilight smiled, seeing how much she loved her brother and how much she could endure. Using her magic she lifted her and moved the cart, both mares jumping in and descending down the caves, towards the exit.

They were going to save Shining and Cadence was going to have her perfect day.