Princess Cadance wrote a letter to Princess Celestia and all of the United Equestria about the raiding an hour ago. She detailed Grogar's arrival and how the Guardian Dragon, with assistance from the Crystal Heart, defeated Grogar.
Flurry Heart is playing with the younglings and gathers them to meet the Guardian Dragon; he reveals his experience of conquering a demon, including defeating a monster that put every pony to slumber. Many Crystal Ponies cheer and chant Spike's name, glorifying their new savior since the Brave and Glorious resides in Earth Land.
Spike is overwhelmed by the praises he's receiving from every Crystal Pony; he's trying to play the flugelhorn with many younglings, hoping to learn how to make music. While he makes music with the youth, he hears his name bellowing from afar; he and every pony divert their attention to two Dragons, a Changeling, a Unicorn, an Alicorn, and a Draqonecuus.
Spike believes Princess Cadance's letter reached Castle Central and gained every creature's attention to the arrival of Grogar at the Crystal Empire; Princess Celestia, Chrysalis with Terax on her head, Discord, Twilight (Sci-Twi), Smolder, and Garble land in front of the Crystal Faire.
Every creature wonders why they came to the Crystal Empire except for Spike and Flurry Heart. Flurry Heart believes that her mother received a response instantly, possibly from Princess Luna, to let her know about her sister and members of the United Species coming. Spike believes they came to inspect and retrace Grogar's motives for a thorough understanding.
Princess Cadance descends from the balcony of her private room to confront Princess Celestia and the others to negotiate a private investigation while Spike and Flurry Heart continue with the festivities. Princess Celestia requires a one-on-one interview with Spike after the Crystal Faire ends since he's the creature that fought Grogar. Princess Cadance nods in understanding, and with Discord present, he can use his Chaos Magic to reveal Spike's memories for all to see.
Discord's body starts quaking and follows the traces of Grogar's movements inside the Crystal Castle; every creature else follows except for Terax. Chrysalis instructs her son to follow Spike and Flurry Heart while having fun with every Crystal Pony. She urges Terax to stay near and inform an adult or Spike and Flurry Heart if you sense something abnormal. Terax understands his mother's instructions and meets with Spike and Flurry Heart.
Discord sniffs Grogar's scent and activates a spell called the after image. Using time as a modifier, Discord closes his eyes and becomes Grogar; however, every creature can see Grogar missing a left eye, which makes them worry even more. Discord follows the trace up the stairs and into the corridor where Spike the Fairy and Midnight Sparkle fought; this causes sudden flashbacks for Chrysalis of when she confronted Midnight Sparkle during the war over a year ago.
Discord pauses in his tracks when he replays the moment of Grogar picking up a crystal shard with immense power. Discord can't feel what Grogar felt but indicates something more terrifying than the memory led on. Princess Cadance, Celestia, Twilight, Chrysalis, Smolder, and Garble all have eerie feelings from a movie night review when Spike the Fairy and Midnight Sparkle fought a second time. Discord dispels his spell and takes a mental note of his memory. He and every creature are silent due to the alarming remembrance of the item.
Everyone remembers the moment when Midnight Sparkle encased Fairy Law into a crystal shard before continuing her onslaught.
"HOLY SHIT!" Every creature blurs, even with Discord using an airhorn to silence the language; it's horrific to think the horrors and travesty Grogar can unleash with the power of Fairy Law if he'd corrupted it.
"We need to train our forces swifter; war is imminent, and Grogar can release a wave of devastation with that kind of power," Princess Celestia advises Princess Cadance to start prepping.
Princess Cadance covers her face in shame with her front hooves; she's mortified about the negligence of retrieving the shard even after reviewing Spike the Fairy's memories many times over with her daughter. The humiliation on her face is evident that she and many others gave Grogar an unspeakable power as a supplement to his Eternal Cataclysmic Scepter.
Princess Celestia confirms to Princess Cadance that she no longer needs Spike for a one-on-one session since Discord displayed the after-image spell. She is perplexed about the current health situation Grogar seems to have and feels something else is amiss, sensing someone more omnipotent than Lord Tirek. This hunch is unlike any other with magic such as Fairy Law amid the situation.
Twilight voices her reason to stay within the Crystal Empire for the next few days or weeks since war is on the horizon. Princess Cadance approves Twilight's request and escorts her to Spike's room within the castle; It's the same one Discord used when he disguised himself as Spike two years ago.
With Terax's friends residing in the Crystal Empire, Princess Cadance informs Chrysalis she can stay with Terax, knowing he'll get lonely since his friends are already here. Chrysalis wonders which room she and Terax will bunk in, plus she'll do her part in training the Crystal Guards since Shining Armor is working with all armies of United Equestria.
Garble and Smolder told Discord they must return to District Ten and report to Neighsay about what happened and what's coming afterward. Discord uses his magic and teleports the two to their guildhall; he warns Celestia about Lord Tirek's frightening transformation if he absorbs Fairy Law since it's one of Fairy Tail's most powerful spells. That puts fear into Princess Celestia's heart; she urges Discord to make haste and whisks them to Castle Central for an emergency meeting based on their discoveries.
A few hours later, Spike, Flurry Heart, and Terax had a fantastic time together as friends, especially with the younglings and Crystal Ponies. Spike patted his belly for winning the Crystal Corn Eating Competition, proclaiming it was the best corn he'd eaten in his existence; Flurry Heart won a bronze medal during the flugelhorn solo act; Terax watched his friends and laughed when Spike attempted to play music, he claimed it bad as him playing the piano.
Nonetheless, Spike, Flurry Heart, and Terax say their byes to the younglings and Crystal Ponies, then enter the Crystal Castle. Princess Cadance, Chrysalis, and Twilight confront the trio urgently.
"Spike, please elaborate on Grogar's eye," Princess Cadance urges to understand Grogar's stability since there are no records of Grogar sustaining an injury explained throughout history.
"When I jabbed his eyeless void, I felt something sizzling and tingling on my index finger; when I pulled back, my index finger was coated in redness for a few moments before dissolving."
"Anything else about Grogar you may have forgotten to mention?" Chrysalis asks, hoping she'll remember what logical sense would harm Grogar and give him an injury unlike any other.
"I've noticed he withstood a haul of my orbs exploding beneath his feet, but he looked dazed when the smoke cleared. I suspected Grogar was massively overwhelmingly resilient to withstand the attack, but I was sorely mistaken. Judging Grogar's body language, he looked like he was cursing himself for succumbing to minor injuries to a great extent. I could have killed Grogar if my feelings didn't divert me; the comparison to Fairy Dragon made me upset and pissed off. I should have known better than to expose such an unfortunate mistake that allowed Grogar to take advantage of me..," Spike sadly sighs, feeling like a bonehead for getting agitated by the reference to Fairy Dragon, knowingly using his Exploding Cataclysm spell.
"Here's a tough lesson, Spike," Chrysalis asserts in front of Spike. "Every creature will compare you to the Fairy Dragon for having his voice, motives, and magistery; you'll need to find the proper balance to be yourself while fighting vicious foes. You cannot allow your emotions to drive you to your demise. Think outside the box and draw new ideas with your Energy Maker Magic to convince others to cease comparing you to Spike the Fairy; then, and only then, creatures will remember the name, Guardian Dragon!"
Spike takes Chrysalis' advice to heart; he thinks about stepping up his game and humbling himself to avoid careless mistakes when he battles Grogar or someone more powerful than him.
"Thank you, Chrysalis," Spike smiles and activates his energy wings; he'll fly to the Crystal Library to conduct his studying to apply different spells to his arsenal; Spike takes off and flies.
"My pleasure," Chrysalis smiles, watching the Guardian Dragon better himself for the right reasons; she then sees Twilight flying after Spike.