Mephiles and Shadow appeared outside the outskirts of the Crystal Empire.
Shadow: So Mephiles are you ready to die?
Mephiles: Die? I don't even know the meaning. Besides you and our gods.
Shadow: I'm no god. And you're no god just a murderer.
Mephiles: Don't pretend to be one them because you're not, even you want to be. They need you now but when they don't they'll turn your back on you because of what you are.
Shadow: Shut the hell up I had enough of your lies.
Mephiles: Don't believe me then let me show you.
Shadow: Show me what?
Mephiles: Your future on Mobius.
-Mephiles used his powers and created an illusion and Shadow looked at it.
Shadow(speechless and shocked) What the hell?
Mephiles: Your eyes do not deceive you, that is you. Over the years the humans saw you grow in power and strength but even though you were fighting for them they feared what you could do if you turned on them. So they made a choice either wait and see what you would do in the future or lock you away forever.
Shadow: No..it..can't be true.
Mephiles: Fraid so. But it doesn't have to be that way. Join me and together we can rewrite the future in our image. Just peace to
Shadow: Never.
Mephiles: What?
Shadow: All you want is to destroy life. You crave for destruction and I will never join you.
Mephiles: Shadow, you used to be so much more. But wish to die...THEN ALLOW TO SEND YOU TO A ONE WAY TRIP TO OBLIVION!
Mephiles threw multiple dark energy balls at Shadow, but Shadow knocked each of them away using his hands. Then Mephiles flew at Shadow punching him on the side of his face but Shadow recovered and kicked Mephiles in the gut sending him flying, then Shadow took off running towards Mephiles and grabbed his legs. Shadow used his hover shoes to fly up a little up off the ground and started spinning, swinging Mephiles around. Mephiles face kept hitting against ground as he was being swung then Shadow let go of him sending flying and crashing into a nearby giant boulder.
Shadow: Let's finish this!
Shadow started charging his chaos energy powering up for a attack.
Shadow: YOUR GOING STRAIGHT TO HELL?! DIE!
Shadow fired a volley of energy attacks where Mephiles crashed. Dust and smoke clouded the area where Mephiles was. Then Shadow raised his right hand channeling his energy into it.
Shadow: CHAOS….. SPEAR!
The attack made contacted and caused a big explosion shaking the surrounding area. Shadow was breathing steadily.
Shadow(thinking) That was too easy. A little easy.
Mephiles laughed evilly.
Shadow: Damn. I hate it when I'm sometimes.
Mephiles walked out of the smoke.
Mephiles: Most impressive Shadow. It would seem you have gotten stronger since the last time.
Shadow: I'm just getting started.
Mephiles: Show me what you got.
Inside the castle the Twilight and the others(including the CMC) were in the throne room
Rainbow: I hate this we should be out there helping Shadow fight.
Fluttershy: But he didn't want our help.
Soarin: I gotta agree with Rainbow Dash on this. We should've helped him.
Cheese: What were we suppose to do?
Mac: Apparently nothing.
Shining(growls) I feel so useless.
Cadence: Don't say that.
Shining: It's true I couldn't save you. Shadow did that. Now he's fighting this guy on his own, while we stand here doing nothing.
Cadence: Don't put yourself down like this. You'll always be my hero no matter what and Shadow just wants us safe plus I think that's how Shadow is.
Shining: I guess you're right. You always know what to say Cadence.
Cadence: I'm your wife, it's kinda my job.
Applejack, Rainbow, Rarity, and Fluttershy were with the CMC.
Sweetie Belle: I'm scared.
Scootaloo: Me too.
Applebloom: Same here.
-Rarity hugged Sweetie Belle and Applejack did the same for Applebloom.
Rarity: Don't worry Sweetie Belle everything be alright soon.
Applejack: That's right
-Rainbow rubbed Scootaloo head.
Rainbow: Don't worry kid, I won't let anything happen to you.
Scootaloo: Thanks Rainbow Dash.
Cheese: Hey Pinkie Pie why don't we try to cheer up the little fillies.
Pinkie: Great idea!
-Meanwhile Sunset and Twilight were on the other side of the room talking.
Sunset: How are you doing Twilight?
Twilight: I'm ok just worried about Shadow that's all.
Sunset: He'll be fine Twilight just have faith.
Twilight: You're right. I just know he'll win.
Flash: Hey you two.
Twilight: Hey Flash.
Sunset: What brings you doing over here?
Flash: Actually I wanted to talk to you Sunset.
Sunset: Me? Really?
Twilight: I'll just give you two some space.
-Twilight walks over to the others.
Sunset: What is it you wanted to talk about?
Flash:Do you have feelings for me?
Sunset: I..I. do but I know you like Twilight.
Flash: I did. But she explained to me that she had feelings for somepony else.
Sunset: She did?
Flash: Yes. But ever since you returned to Equestria I felt this connection between us I couldn't explain it but it was like I already knew you. That's when I started having my doubts about Twilight.
Sunset: What are you saying?
Flash: I'm saying, that I think you're the one I'm meant to be with.
-Sunset Shimmer was speechless and happy at the same time. Flash then held her hoof in his.
Flash: Sunset Shimmer, will you be my special somepony?
-Sunset Shimmer started to cry with tears of happiness.
Sunset: Yes I will.
-Sunset then kissed him surprising him. The others watched the romance.
Rarity: Isn't that lovely.
Rainbow: I knew it. She totally liked him.
Fluttershy: So romantic.
Pinkie: That could be Shadow and Twilight soon.
Twilight(blushing) Pinkie.
Pinkie: It could.
-Suddenly the doors open and a royal guards heads over the group.
Royal Guard: Your highness.
Cadence: What is it?
Guard: Princess Celestia and Luna have just arrived.
Sunset: Celestia's here?
Soarin: Awesome. With their help we can totally beat those guys.
Rainbow: Yeah!
Twilight: Then what are we waiting for? Let's go see them.
Everyone(except Sunset) Okay.
-Everyone starts heading out except Sunset Shimmer. Twilight notices and goes back to check on her.
Twilight: Sunset Shimmer, what's wrong?
Sunset: I can't go in there.
Twilight: It's because of Celestia isn't it?
Sunset: Yes. It's so been so long since I seen her. And what if she hasn't forgiven for the things I done?
Twilight: She already has. After that "incident" back in the human world, all she talked about was much she missed you.
Sunset: She did?
Twilight: Yes and I think it's time you two had a little reunion, don't you think.
Sunset: Yes. Let's do this.
Twilight: That's the spirit. Now come on let's not keep them waiting.
Sunset: Right behind you.
-Twilight and Sunset walked towards the door. Meanwhile the others were with the princesses telling them what.
Cadence: And that's all what happened here
Shining Armor: The casualties would have been worse if if wasn't for Shadow and others.
Celestia: I am proud of all you and glad to see that none of you were hurt.
Everyone: Thank you Princess.
Luna: Where is Twilight Sparkle?
Twilight: I'm here.
Twilight walked out the room and walked over to Celestia and hugged her.
Celestia: I'm so glad to see your safe, Twilight.
Twilight: Thank you, Celestia.
Celestia: Now that everypony is present there's something I need to tell you all.
Twilight: Sorry to interrupt you princess, but I think there's somepony else who you should meet.
Celestia: Who?
Twilight turns around.
Twilight: You can come out now.
-Celestia then looked up in disbelief and saw some a certain pony, walking out the room, she thought she never see again. She began to walk towards Sunset Shimmer and stop in front of her.
Celestia: Can it really be you Sunset Shimmer?
Sunset: Yes it's me. It's good to see you again Princess Celestia.
-Both Celestia and Sunset began to tear up and then they began to hug each other.
Sunset: I missed you so much.
Celestia: I missed you too.
-Everyone on the room were smiling at the sight of the reunion.
Cheese: Mac are you crying?
Mac: No I just got something in my eye.
Soarin: It's ok big guy we all feel the same way.
Luna: I hate to be the one to interrupt but we need to tell them about the spell.
Rainbow: Spell? What spell?
(Out of nowhere a ball of light appeared behind Rainbow)
Light Orb: The spell to bring Shadow's friend to Equestria.
Rainbow: What the heck?
Applejack: What in tarnation is that?
Pinkie: It's so shiny.
Spike: What is it?
Twilight: Do you know this thing princess?
Celestia: Yes. Everypony, allow me to introduce my old mentor...Starswirl The Bearded.
Everyone: WHAT?!