After escaping the destruction of the Guys in White's secret base, the group is currently flying in no general direction. Tails was helping Tucker with trying to track down the remaining Chaos Emeralds, and with it, tracking down Discord as well. Tails looked over his scanner for any lead, but to no avail.

Sonic turned to Tails and asked, "Any luck buddy?" Tails shakes his head in response. Feeling that this may take a while, Sonic decides to pass the time by talking with the group. As he looked at the ponies, a thought crosses his mind. He asks Twilight, "I just realized that you ponies have been wearing your Elements of Harmony this whole time. Might as well put them away for now. It's gonna be a while until we find Discord."

Twilight answers, "We don't have anything to put them away in." Hearing this, Ed says, "Oh! I can carry them for you!" He then pulls his jacket and reveals a fridge door on the inside of his jacket, startling the group, excluding Double D and Eddy, in the process. Noticing the fridge door, Ed says, "Woops, hold on." He then closes his jacket and re-opens it, revealing that the door is gone. Curiosity getting the best of her, Pinkie goes up to Ed and puts her head in the inside pocket. Her head then came out of the other inside pocket of Ed's jacket and she says with a smile, "There's plenty of room for the Elements in here!" Seeing this, it left everyone, excluding the Eds and the ponies, speechless.

Noticing the nonchalant behavior, Danny turned to them and said, "I'm gonna take it that you seven are used to stuff like this with them." Rainbow Dash shrugs at the comment and says, "More or less." Pinkie's head lowered and came out of the inside pocket she had stuck her head in, but she had some mysterious food substance covered in lint in her mane. Ed plucked the mysterious food from her mane and tucked it back in this jacket. Feeling uncomfortable with the thought, Rarity said, "I think I'll just put my element in Finn's pack, if he doesn't mind, that is." Finn said, "Nah, I don't mind. I can even hold the Chaos Emeralds for you guys too." He takes his pack off, opens it, and the ponies placed their elements in it. Finn then gestured for the others to put the emeralds in the pack, but they declined at the moment.

As Twilight was putting her element away, she turned to Danny and asked, "Hey Danny, what was up with that Skulktech? I remember before they separated and were captured, he acted very strange after crash landing." Danny did his best to not laugh and thought, "I know he doesn't want anyone to know this, but he brought this on himself for that act." Knowing whom he was talking to, Danny was hoping this wouldn't hurt their feelings. He turned to them and said, "Try not to take this the wrong way, but Skulker is afraid of unicorns." With this bit of information, the ponies looked on in confusion, but not as confused as Twilight and Rarity. Among the group, most of them tried not to laugh at this information, Shadow, Rigby and Eddy on the other hand, couldn't help but laugh at the info.

After letting it sink in, and with the laughter settled down, Twilight asked, "Why would he be afraid of unicorns?" Not wanting to go too much in detail, Danny said, "Just a bad experience in the Ghost Zone. While I was looking for Pandora a while ago, I saw him getting chased by three monstrous-looking unicorns. He even went on saying, ‘I never understood why people think those things are cute.’" Twilight and Rarity had a sullen look on their faces, something Danny took notice to. He immediately said, “But those were from Pandora’s Box, you two are cute in your own rights.” They both gave Danny a half smile from this, but still felt down from the revelation. Mordecai thought about changing the subject and asked, "So about Skulktech. You said that he was a future ghost, right?" Hearing this, Danny turned to him and said, "Yes, Skulktech is a future ghost, that partnership isn't supposed to exist for a while." Hearing this, Shadow said, "What I want to know is how did they get their hands on this?" He then held up the green Chaos Emerald. The group then started thinking over how they got the emerald to begin with. Knuckles said, "I scattered those emeralds when Time Eater showed himself the first time. I wouldn't know how a ghost was able to get their hands on one of them."

Remembering a few days ago, Danny remembered the green glow that shot through Amity Park. He then said, "Oh, um…I think I might know how that happened. I remember Sam, Tucker and I seeing a green light flying through the sky. I thought it was a rouge ghost and I ended up catching it in the thermos. I had already captured Skulker in the thermos to begin with. I'm guessing he talked with Technus after I sent him back into the Ghost Zone with the emerald." Shadow rolled his eyes, while Sam said, "That explains that at least." Danny then said, "Who would have thought a little mistake like that would give us a chance to team up with Sonic. I'm not complaining about that at all." After saying this, Sam couldn't help but smile at Danny's excitement.

Shadow then says, "At least the three of you have been of use. I still question the three stooges here." Feeling insulted, Eddy says, "Oh, come on! Don't pretend that we don't pull our weight with this group! Don't forget who saved you back in the base. And Ed here went full Rambo on those guys using Twilight." Hearing how it was phrased, Mordecai and the others, excluding the ponies, looked on in confusion. Ed then said, "Yeah, that wedding thing Pinkie told me was no lie." Confused from this, Mordecai asks, "What wedding was that?" Twilight simply responds, "My brother's wedding." Hearing this, Mordecai instantly pales at the revelation. Twilight continues talking about her brother, the wedding, how close she and Shining Armor are, her now sister-in-law who foalsat her when she was a filly and what had happened on the wedding day.

Mordecai doesn't pay attention to the conversation; fear has taken over his mindset at the possibility of one day meeting this brother of Twilight's. He snaps out of it when he hears Sonic say, "Big Brother Best Friend Forever." Twilight says in excitement, "Yes! Thank you! I was worried someone wasn't going to get it." Sonic shrugs and says, "I've used acronyms before, it wasn't that hard to figure out."

Noticing the look on Mordecai's face, Sonic continued the conversation and asked, "So Twi, how did you guys defeat the Changelings?" Twilight answered, "Actually, we didn't defeat them. Shining Armor and Cadence did." The group looked on in confusion, leading Twilight to continue the story. She said, "Cadence first broke Shining Armor out of Queen Chrysalis' grip, and how drained he was from Chrysalis' mind control, she helped him with her magic. She touched her horn with his, ultimately creating a powerful enough spell that sent Chrysalis and the other changelings out of Canterlot and back to where they came from." After hearing this, the group thought, "So cheesy." The only one who really enjoyed it was Amy. She said, "That's the power of love for you."

The group then continued having a peaceful conversation amongst themselves, all but Mordecai who was still getting his bearings away from the group. While everyone was distracted from Danny's story, Sonic went over to Mordecai to talk to him privately. He leaned over to Mordecai and whispered, "You're a dead duck dude." Mordecai face palmed at what Sonic said and replies, "Not helping dude." Sonic shrugs and says, "What? I'm not the one freaking out about my crush having a brother." Mordecai released a frustrated sigh and says, "It's not just that. From what Twilight said, she and Shining Armor are very close, and from what she said, it sounds like he's the older brother. So, I'm pretty sure he's going to be the overprotective type." Sonic then says, "As any good brother looking out for their sister should. From what Twilight was saying about him, Shining Armor sounds pretty cool. The two of you could end up getting along, and that can be a good thing in Twilight's eyes if you did."

Mordecai looked at him in confusion and asked, "You think so? You don't think he'd kill me if I were dating his sister?" Sonic said, "He might, but it's up to you to make it work. Better to know now, rather than on the first date when she says that she has a brother." Mordecai still seemed unsure with the given information, but Sonic pressed on and said, "Look Mordo, no one said it would be easy. When it comes to these kinds of things, you're not only building a relationship with Twilight, you're building it with her friends and eventually her family too, don't forget that you'll one day meet her parents as well. You wouldn't want to tear Twi away from her friends or family, would you?" Shocked from the question, Mordecai says, "No way! I wouldn't dream of doing anything like that." Mordecai looks back to the group and sees that they were laughing at something together. Seeing the happiness on her face, Mordecai couldn’t help but smile. He continues and says, "I can see that they mean a lot to her, and I can get along with them." Sonic then said, "The same thing has to be done with her family too, you and I both know that. If you can get along with her friends, then you can get along with her parents and brother as well. Only a jerk would want to tear someone away from their family and friends for their own selfish wants, and I know you aren't that kind of person and I know that you have it in you to get along with them as well."

After saying this, Mordecai let what Sonic said sink in. He knows that this is a standard for anyone. He never had that chance when he tried to get with Margaret, so naturally, he was afraid of the circumstances. With the feeling of support on this, Mordecai felt motivated that he could befriend Twilight's parents and her brother. Mordecai then said, "Hmm, hmm. Thanks Sonic." Sonic gives him a thumbs up and begins walking towards the group, until Mordecai asked, "Is this how it is with you and Amy?" The question froze Sonic on the spot. The group didn't seem to hear Mordecai's question, Sonic being thankful for that.

Before Mordecai could push the subject any further, Tails said, "I got a lock on the last of the Chaos Emeralds!" With that, Sonic ran up to Tails, as the rest of the group were now focused from what he had said. Sonic asked, "How far is he?" Tails said, "Not too far." Double D said, "This seems easy." Tucker added, "Too easy if you ask me." Tails said, "You have that feeling that he's trying to set us up too?" Being on the same page as Tails, the duo nodded to his question. Sonic said, "Set up or not, he still has 3 Chaos Emeralds, and we can't let him keep them."

Knowing that Sonic had a point, Tails input the coordinates to the location and the Specter Speeder was set to find the last of the Chaos Emeralds.
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After flying for half an hour, the Specter Speeder reached its destination. Sonic recognized the land as the same area Eggman tried to build Eggmanland on when the world was broken. After landing the Specter Speeder, the group exited and began their search for Discord.

The group looked around the place as best as they could, but to no avail. They split up into a group of three in an attempt to find Discord quicker. The group was led by Danny, Sam and Tucker thanks to them having the Fenton Phones to keep everyone in the groups updated. They searched each end of the island, but they still couldn't find any trace of him.
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As the group split up, Sonic had a nagging thought pop up in the back of his head. He knew that this was almost over, but as he looked at his group, seeing Mordecai talking with Twilight, and seeing how they are interacting with each other, enjoying being with one another. He's also seeing the Eds acting like regular kids, goofing around, not taking this very seriously or really thinking about a potential no-win scenario for them, and seeing Danny having the time of his life based on the fact that he is excited to work with him. As much as he's enjoyed what has been going on with this unique group, deep down, he didn't want to put their lives at risk.

Noticing the sullen look on his face, Amy slowed her pace down and asked, "Is everything okay Sonic?" Snapping out of his thoughts, Sonic turned to Amy and said, "It's nothing, I'm fine." He wore a fake smile, trying to cover up his thoughts, but Amy saw right through it. Shadow overheard the conversation and noticed Sonic's expression. He fell back to Sonic and Amy and said, "You have that feeling too, don't you?" Caught off guard by Shadow's question, Sonic asked, "What?" Shadow then said, "Don't play dumb, I know you don't want these guys getting hurt." Sonic then said, "What am I supposed to do?" Shadow said, "You invited them, it's on you."
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After searching for what felt like an hour, Danny started feeling as though this were a wild goose chase, He was about to phone it in on the Fenton Phones, but to his surprise, he saw something. He said, "Guys, I think I found something."
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It took a while for the groups to meet up at the location, but once gathered together, they see what Danny had found. It was a portal in the middle of the forest. It didn't look like a ghost portal, but it felt odd seeing a portal of any kind just sitting out in the open. Sam broke the silence and asked, "Do you think this might be it?" Danny said, "It has to."

Feeling as though this adventure was coming to an end, Sonic got in front of the group and said, "Thank you guys for your help, we can handle this from here." Confused from the sudden declaration, Danny asked, "What do you mean 'You guys can handle this from here'?" Sonic then said, "If this portal is leading to Discord, then it would be best that he and Time Eater don't get their hands on all of the Chaos Emeralds with all of you there." Sonic then pulled out the cyan emerald. He continued and said, "You all helped enough, we have gathered four of the emeralds throughout this journey. I don't want any of you getting hurt from here on out."

Confused from this, Twilight asked, "What about the Elements of Harmony? These are supposed to help stop Discord for good." Sonic didn't know how to answer that, he knew deep down that the Elements of Harmony were to help stop Discord, but he didn't want the ponies to get hurt, especially with knowing that Time Eater was with Discord and three of the Chaos Emeralds on their side. Shadow said, "To put it simply, you all will get in the way for this. We've faced Time Eater before, and with you guys here, it would make it harder to fight them. If we can take down Time Eater, then Discord should face the same fate that Eggman did when Time Eater was beaten the last time. Plus, Time Eater should be a lot weaker from the last fight, he hasn't really shown himself throughout this whole ordeal."

After Shadow's explanation, everyone felt insulted from how it was phrased, Eddy said, "Why you dirty-!" Danny interrupted what Eddy had to say, and said, "Look, I didn't come all this way just to be told to go home. We've faced worse than what Discord has brought, we can handle Time Eater too." Sonic said, "I'm sorry, but this is for the best. We'll celebrate when it's all over." Without another word, Sonic, Tails, Knuckles, Amy, Shadow, Rouge, Silver and Blaze walked into the portal.

Feeling upset with the sudden turn of events, the remaining group didn't know what to do. Eddy said, "This stinks! Should we just go home if that's the case?" Not wanting to just give up, Mordecai said, "No! We didn't come all this way for nothing! I don't know about you guys, but I'm not gonna sit on the sidelines for this one! I want to see this through to the end!" The group focused in on Mordecai's speech, feeling doubt fading away and slowly becoming inspired themselves. Twilight couldn't help but blush at how inspiring Mordecai sounds. Despite the seriousness of the situation, Mordecai is still willing to help, it was awe inspiring to say the least.

Mordecai continued and said, "We're all here because we wanted to help Sonic and his friends. So, no matter what happens in there, I want to know that I was able to help when it was needed the most. Who's with me?!" It didn't take long for a response, as Rigby, Finn and Jake yelled, "YEAH!" Still feeling pumped from the speech, Mordecai yelled, "Who's with me?!" Danny, Sam, Tucker, Ed, Edd and Eddy yelled, "YEAH!" Wanting to hear everyone, Mordecai said one more time, "Who's with me?!" Twilight, Rarity, Pinky Pie, Rainbow Dash, Applejack and Fluttershy yelled, "YEAH!" Seeing that everyone was on board, Mordecai unsheathed the Root Sword, pointed it at the portal and yelled, "Then let's give it our all! CHARGE!"

And with that, the remaining group charged into the portal, ready to help Sonic and his friends defeat Discord and Time Eater once and for all.

Author's Notes:

Short chapter, I know, but this is the last filler chapter before getting ready for the final act. Thank you all so much for sticking with this story all these years, I am proud to have worked on this to the best of my abilities and have people enjoy this story. I know crossovers aren't a lot of people's favorite, but when I get those good compliments, a follow on the story, I know that the fans outweigh the critics.

Get ready, the final battle is on its way for Sonic and the gang.