Summer and Shysage cleared the Portal in the Equestria Girls world.
They both realized that Princess Twilight and the rest of the Equestria Girls were already there, waiting, and ready to go through, back to Equestria.
"Ok girls, head through the Portal, and do what we discussed" Princess Twilight said.
The Equestria Girls; Pinkie Pie, Rarity, Applejack, Rainbow Dash, Fluttershy, then Twilight Sparkle headed through the Portal with maybe 30 seconds in between.
Shysage guessed they didn't need dark coats this time.
Princess Twilight said softly "Equestria Girls Summer come through, then Summer and Shysage."
Princess Twilight then went through the Portal, followed by Summer's Twin.
Then Summer and Shysage held hands, and went through together, and were soon back in Equestria.
Summer and Shysage cleared the Portal, and stayed ponies on the Equestria side.
The rest of the Equestria Girls were sitting, as ponies, along one of the long walls of the Portal room. They were sitting still, separated from each other by maybe three feet, eyes closed, almost motionless, and not talking.
Still, Princess Twilight looked at Shysage, then sighed. Then she said quietly "Oh, Summer..."
Princess Twilight used her magic to gently remove Summer's Shield Necklace from around Shysage's neck, then she placed it back on Summer's neck.
Summer cried softly as she hugged her Princess briefly. Summer loved her Princess.
Princess Twilight walked over to the balcony, and said quietly "Both Summers and Shysage, please come with me.
It was morning in Equestria, and the four of them took to the air and headed to Ponyville.
The trip there was long but quiet. They stopped once to rest, eat and drink. Then they resumed their journey.
Once they were close to Ponyville, Princess Twilight said simply "We are heading to the Castle"
It was almost noon when the four of them landed in the grass outside the Castle.
They were all quickly inside.
Shysage really didn't know what Princess Twilight's plan was, but he was sure his Princess 'just knew', so he didn't worry about it much.
The Castle also seemed deserted. Since the workers all lost their memory, this was to be expected.
Princess Twilight quickly led them all to a lower level that Shysage didn't even know existed. Princess used her magic to make a small light so they could see their way, down a bunch of stairs. Otherwise, it was very dark down here.
They passed through a large set of doors, and were inside; then Princess asked everypony to stay there, right inside the door.
The room looked huge and high. Shysage realized there was a large, round table in the center, with some large chairs around the table. Shysage guessed there were six chairs, but he couldn't see all of them.
Well they looked like big chairs. Ponies can't sit in normal chairs. But a pony could easily climb up into the flat area of these chairs, and sit down. That's what Princess Twilight did once she got to her chair. Shysage guessed there was easily enough room for two ponies in each large 'chair'...
This room looked like some sort of 'Council Room', specifically for Princess Twilight and her girls.
Princess Twilight walked slowly over to the chair furthest from the door, and climbed up and in, then she just sat down...
...
...and the Council Room came wildly to life...
...
Shysage guessed the room was split into six sectors, with the point of each sector meeting in the center of the table.
The sector that Princess Twilight's chair was centered in, immediately blazed to life, brightly. The main color was the characteristic Purple of the Twilight's 'Soul Link' Aura and element... Floor, ceiling, walls, all were brightly illuminated.
And it looked like there was a 'stained glass' type of picture of Princess in the wall behind her chair. It was beautiful, of course.
The other five sectors blazed to life, one at a time, working around the circle... Each of the new sectors blazed brightly, with the color appropriate for the 'aura' of the pony, and element, each sector was for. And each new sector also held another picture of an amazing pony...
By the time all six sectors were blazing brightly, it was very bright in this room...
Shysage decided it was probably a very nice place for Princess Twilight's girls to meet together.
...
But Equestria was only getting started...
...
Probably responding to the very real attack on Equestria, Princess Twilight's 'Element of Harmony' slowly surfaced above her Cutie Mark, and then quickly moved above her head, and began to rotate slowly...
Shysage gasped loudly at what happened next...
...The other eleven Elements, along with their 'carriers':
...the five Equestria ponies wherever thay were in Equestria...
...and the six Equestria Girls sitting quietly in the Portal room in the Crystal Palace...
...were all IMMEDIATELY transported to this very room, to the proper area behind each of their large chairs...
...and each of their 'Elements of Harmony' likewise surfaced from their Cutie Marks, and all rose to slowly rotate above their heads...
...
Princess Twilight's 'Element of Harmony', FROM this very Council Room, had summoned the other eleven ponies, and their 'Elements of Harmony', INTO this very Council Room, from wherever they were in Equestria...
They were ALL HERE... now...
...
The Equestria Girls had their memory, and so, just like they were in the Portal room, they were pulled in, simply sitting, into the area behind their chair...
Equestria Girls Twilight Sparkle immediately climbed up into Princess Twilight's chair and sat next to her Twin, Princess Twilight.
...
The Equestria Ponies, having lost their memories, were pulled in while in the same stance they were in, from WHEREVER they were in Equestria...
Equestria pony Fluttershy was laying on the floor, weeping softly, still almost unresponsive...
Shysage guessed that the loss of her memory had been terrible for this very sensitive pony... She knew something had gone terribly wrong, but she could not know what it was...
Equestria pony Pinkie Pie was also lying on the floor, but crying loudly...
For this pony, for whom 'friends' were everything, to forget all that would likewise probably be excruciating...
The rest of the Equestria ponies were standing... They blinked a few times, looked around at their friends, immediately sensed their Twins, and began to weep softly...
Shysage suspected that this room had erased all the spells, too...
...
Equestria Girls Fluttershy immediately 'Soul Linked' with her hurting Twin, Equestria pony Fluttershy. Pinkie Pie's Twin did the same thing...
Shysage realized that, when his Mare was battered, the Twin Link wasn't very successful, and she didn't even want the 'Soul Link'...
But it looked like now... here... In this room, the 'Soul-Link' was far more powerful and effective...
The Soul-Link snapped to life immediately, and both Fluttershys and both Pinkie Pies were quickly sitting next to each other, hugging tightly, weeping softly.
The rest of the Twins just did the same, and Soul-Linked, as did the Summer Twins.
Shysage backed up to the doors, and sat down... ...amazed...
...
Shysage knew this Castle was not 'built'... It had 'grown' from a seed -- the Elements of Harmony box unearthed during the fight with Tireq.
This Castle was no ordinary Castle... And the Magic of Friendship simply amplified everything 'magical' that happened inside it...
And the Castle probably had it's own shield around it now, no matter who or what Equestria faced...
Shysage was pretty sure that this amazing Castle, planted in insignificant little Ponyville, was now the magical 'heart' of Equestria... This was Princess Twilight's amazing legacy...
...
...And Equestria was remembering... Equestria was getting ready to take a stand... Starting... Right... Here...
...
And Shysage was soon weeping softly, realizing that through the 'Bond of Knowing', first, Equestria Girls Twilight Sparkle had known what to do... Then his Princess, Princess Twilight, had known, or at least suspected, that this room would summon forth, and draw to itself, the "Elements of Harmony', and the amazing ponies that carried them, no matter where they were in the Realm...
FROM NOW ON, there would no longer be any 'running around' to try to gather everypony...
All Princess had to do was sit in her chair, in the face of a clear threat to Equestria, and this magical Castle would 'do the rest', as it had just done right now, and bring them all here...
Shysage didn't know if this Castle would automatically bridge across the Portal to the Equestria Girls world, but that didn't matter right now. The Equestria Girls were all here...
...
After maybe ten minutes of Twin Linking, Princess Twilight sought the Group Link with the seven sets of Twins, and it sprang to life immediately, even though the Twins, while together, were spread randomly around the circumference of the room...
Fourteen amazing friends quickly dove into each other's lives, and shared what pain they could...
...all of them were soon just weeping softly with joy...
...
Princess Twilight stopped the Group Link, and the rest of 'her girls', now healed up and one, simply climbed up into their chairs, Twin with Twin, and were seated around the table, weeping softly.
The Summer Twins just stopped linking, then they walked over and sat next to Shysage.
Princess Twilight started the Group Link with her eleven girls, and it again sprang to life...
...
Princess Twilight and her girls were one...
Everypony loved their Twin, and everypony loved each other...
Princess Twilight and her girls were ready...
The 'magical heart' of Equestria was ready now too...
...
Shysage was simply awestruck at this amazing chain of events...
...And 'Twin Fishing' would have been a hideous failure, and taken far too long compared to this...
Shysage was just the Canterlot Recorder, and that was fine.
As usual, this was Equestria's fight.