Twilight, Rainbow, Jester, and Sprinklejinx entered the underworld.
“Now can you tell me what's going on here?” Sprinklejinx asked hoping for an explanation.
“Fine, I’m going to tell you the full story,” Twilight looked at her. “But you must promise that you will keep it a secret. Make that a “Pinkie Promise”.”
“Cross my heart and hope to fly. Stick a cupcake in my eye,” Sprinklejinx promised.
Twilight took a breath. “It started a couple days ago in the library. I was dreaming, and I saw a book,” Twilight used magic to bring up the book. She left it in the library. She teleported it right in front of her. “This is the the book I saw in my dream. When I woke up, it was lying on my bed. I spent a day with Rainbow Dash and we came back to it when Spike was hearing noises from it. When we opened the book, our lives changed forever. We are now the Gateway ponies. We are the gateway between the ghost world and the real world.”
“What does it have to do with Diamond Tiara and Silver Spoon?” Sprinklejinx asked.
“Well, three days ago, Applejack died and we came down to the underworld to get her soul. Grim told us that you have to kill to replace her soul. So we put Derpy to sleep like you are now, and brought her soul down here. We took Applejack and Derpy’s souls from him. Now Grim decided to kill two ponies. You want to guess who he killed?” Twilight asked.
“Diamond Tiara and Silver Spoon,” Sprinklejinx guessed.
Twilight nodded, “Yep, now if we steal their souls from them, he will kill four ponies. It will keep doubling. This is why we need all the help we can get. We are going to try to put Grim Reaper to rest.”
“My guess that it’s going to be hard to do.You never introduced me to your ghost friend over there,” Sprinklejinx said pointing at Jester. Jester blushed.
“That’s Jester. She’s not alive, she’s dead. She’s helping us,” Rainbow said.
Jester went up to Sprinklejinx and held out her hoof. “Um... Hi,” Sprinklejinx held out her hoof and shook Jester’s hoof. It felt weird to her to touch a ghost.
Well, you only live once, Sprinklejinx thought. Even though she was kind of dead.
Rainbow got impatient. “Can we go to the castle already?”
Twilight looked back at Rainbow. “Lets go!” Twilight led the way. Rainbow, Jester, and Sprinklejinx followed behind her.
They soon reached the castle. Twilight took a second to remember the “Spirit’s Rest Spell”. She knew that once she went into the castle, there was no turning back. Rainbow stretched herself. She spreaded her wings. She thought that she would be fighting Grim. Jester looked at Sprinklejinx
“Why are you looking at me?” Sprinklejinx asked.
“We need to fight Grim. I was thinking just wishing good luck. This is what friends are for, right?” Jester smiled. Sprinklejinx smiled.
Jester might be a very good pony. Very sweet to me. I just hope that my bad luck doesn’t activate when I’m fighting Grim. I hope Twilight and Rainbow have this figured out. Spinklejinx thought.
“You pony’s ready?” Rainbow asked. Twilight, Jester, and Sprinklejinx nodded. “Then let’s go!” She yelled.
They trotted inside the castle. Grim was waiting for them. “Well, let me guess. Twilight Sparkle and Rainbow Dash. I know what you're here for. You want Diamond Tiara and Silver Spoon’s souls back. You're not getting them unless you kill two ponies and give thier souls to me,” Grim explained.
“We will never do your bidding! Just give us the souls right now!” Twilight yelled.
“I guess you're never going to get the souls then,” Grim smirked.
“If you don’t give me Diamond Tiara’s soul right now, my hoof is going to go down your stupid throat. Got that?” Sprinklejinx yelled.
“Sprinklejinx, why is Diamond Tiara so important to you?” Twilight and Rainbow asked.
“Well Diamond Tiara is my niece,” Sprinklejinx admitted. Everypony except Rainbow Dash and Grim are shocked.
“That probably explains why you choose to investigate her death,” Rainbow said.
“Now, since I found the who did this. I’m going to get them back,” Sprinklejinx said acting brave.
“We don’t have to go through with this just give us the souls and its over. We won’t bother you again. Just hand them over,” Rainbow said getting ready to fight him.
“NEVER!” Grim yelled so loud that all the windows in the room shattered.
“Grim, I was wonding if you can let me explore some of Equestria and give me all the memory you took from me back?” Jester asked.
“Sorry, a deal is a deal. I’m keeping your precious memories and you are trapped in Ponyville,” Grim laughed.
Jester had a tear rolling down her cheek. Rainbow looked at her and felt bad.
“Thats it!” Rainbow went for him. Sprinklejinx grabbed the stick Jester gave her and joined Rainbow Dash. Jester went to help Twilight get the spell ready.
“Do you remember the spell?” Jester asked.
Twilight opened the book and the book flipped itself. It turned to the right page. Twilight looked at the spell to make sure that she remembered it. “Jester, I think I’m ready to use to spell. I need you to get Grim on the ground and try to keep him still.”
“I will tell them to do that,” Jester floated up to Rainbow and Sprinklejinx as they fought against Grim. “Twilight wants us to get Grim to the ground and keep him still so she can perform the spell!”
“Ok! how about helping us, Jester!” Sprinklejinx yelled as she hit him with her hooves. Jester went behind him and put him in a headlock. Rainbow and Sprinklejinx grabbed onto his lower hoofs. and lowered him to the ground.
Twilight lit her horn and said the spell:
Don’t let spirits go to waste. Make this one leave no trace. Send it to a different place.
She put her horn on Grim’s heart. Twilight smiled, “Say goodnight forever, Grim.”
“NOOOOOOO!” he yelled. He fell asleep. Grim Reaper was now put to rest.
Jester started to feel something. She suddenly remembered something. Her memories came flowing back to her. “My good memories came back to me. I think I can go check out the Crystal Empire now. With Grim out of the way I can go anywhere!”
“Aunt Sprinklejinx?” Said a familiar voice. Sprinklejinx looked to find Diamond Tiara and Silver Spoon’s souls floating there.
Sprinklejinx floated next to them. “It’s all over now. Let’s just go home.”
Twilight nodded. “Let’s return the souls back to their bodies,”
A couple hours later, Diamond and Silver were alive again. Everypony was happy about it. Their family rejoiced. Twilight and Rainbow became the rulers of the Ghost World. Jester went off to explore the world.
But not everypony is happy about Diamond Tiara and Silver Spoon’s return. The Cutie Mark Crusaders are not happy.
“I can’t believe it! Our worst enemies are alive again,” Sweetie Belle sighed.
“Forget them. We have to find our cutie marks,” Scootaloo said looking at her flank.
“I just wish we can have our cutie marks now.” Apple Bloom said looking down.
“Did somepony say wish?” said a voice. They looked around to find a unicorn ghost wearing a golden suit. He was yellow and had a purple mane. He had a golden lamp for a cutie mark.
“Who are you?” Apple Bloom asked.
“I am the Wishing Ghost. I can make your dreams come true. Make a wish.” he grinned.
Pinkie randomly trotted in front of them. “You ponies want a party?”
“No, we’re good,” Scootaloo looked awkwardly at her. She trotted off.
“Make a wish, my friend. It’s free!” he made his grin even bigger.
“I wish that we had our cutie marks,” Sweetie Belle wished.
“Your wish is my command,” he lit his horn. The CMC closed their eyes.