Queen Chrysalis wasn't happy. She was rarely happy, but right now Chrysalis is very unhappy. After a rather humiliating defeat at the hooves of two lovey-dovey morons, she wasn't about to just make the same mistake again. Though Chrysalis knew she had defeated Celestia and her Elements of Harmony, she was still puzzled as to why the very thing that fed her changelings became the weapon of their defeat. It had something to do with that pink princess she had replaced, but it didn't matter how she defeated her, just that there wasn't a way to cut around it. Finally acknowledging that her advisors actually had some good points as to why her invasion had failed, the queen decided to go for a slower and calculated approach.

The royal twins would surely have put rules and procedures in place in order to snuff out any remaining changeling cells that may be in hiding. In order to avoid this, she sent a command to all her spies in the country to meet in certain places at certain times. Also at the behest of her advisors, Queen Chrysalis ordered her scientists and mages to figure out what spells the inspections were using to reveal changelings, and to find a spell counter this. Once an appropriate countermeasure was found, she would update her cells so they could continue their roles for any future takeover plans. Unfortunately, the anti-changeling spell couldn't be countered. It used a condensed dose of love in the form of mana, and spread it over a pony's body. If it wasn't a changeling, they would just feel all tingly and warm inside. If it was a changeling, then they would convulse and change back to their original form, followed by a horn suppressor, wing binds, and iron chains.

"I don't understand, there isn't ANY way we can counter this spell?!" Chrysalis shouted.

Right now she was yelling at her most skilled Thaumologist, though skilled was a loose term as he didn't give any good news.

"I'm sorry, my queen. We've been looking at this spell from every possible angle, and there isn't a way to go around it without revealing the ling somehow!" He explained. "If we block the spell, then nothing will happen when the inspectors cast the spell, clearly showing that something is up! We've been testing the spell on our test subjects and changelings, and there just isn't a way around it."

"Ugh, this is what I get for trusting a drone to do a queen's job. Just get out! If you're just going to keep being incompetent, then I'll just have to get creative myself."

After the changeling scientist left, her chambers, Chrysalis massaged her temples in disgust.

"I swear, if those lings don't start being competent, I don't know how I'll take over Equestria."

Suddenly, something very odd happened. Something... wrong. A bolt of red lightning shot past her, a note dangling from the wall in front of her. Chrysalis' mouth gaped. What had just happened? It seemed as if lightning had struck inside her royal chambers, despite being the deepest part of the hive. Perplexed, she finally noticed the note left by this strange occurrence. Reading the note, she smirked happily, as it seems that some good news finally arrived for Queen Chrysalis. Eager to enact this new plan, she summoned her top general, followed by a quick entry by the general herself.

Kneeling, the general asked, "My queen, how may I serve you?'

"Rise, 51-W-01," Chrysalis commanded. "Order your infiltration squads to enter and set up in Manehatten, I think we've found a way to finally take over this love-infested nation."

Author's Note

Whaaat?!?! Chrysalis is baaaack?!?! What's gonna happen? What was that lightning? Who was that lightning? What's going to happen?

Also, to clear up some confusion, a Thaumologist is a pony who studies magic and spells, but the difference between them and a mage is that a mage performs the spells, thaumiologists research and study spells.

As for mana, think of it like this: we breathe oxygen, and unicorns cast spells by shaping and releasing mana. It's just something that isn't energy or matter, but something else.

Finally, ling or everyling is just short for changeling or every changeling.