//------------------------------//
// Chapter 4 Revenge 
// Story: The Black Fog 
// by mlprules537 
//------------------------------//

Rainbow Dash was soaring happily through the clouds, not really caring who saw her. Then she heard somepony caterwauling in a mix of fear and anger. She glided to the ground in front of Twilight's castle and knocked, with a pang of grief she reminded herself that Spike wouldn't be coming to answer the door. Twilight burst the door open and Dash noticed a gleam of anger in her eyes, also with a trace of revenge. "Twilight, are you alright?" she asked hesitantly.

"Never better," Twilight snapped back. "Get AJ, Fluttershy, Rarity, and Pinkie. NOW," she added forcefully.

"Okay! Okay! You don't need to bite my head off!" RD grumbled to herself as she zoomed off with Twilight's gaze piercing her back until she couldn't see her anymore.

~20 minutes later~  

After everypony was in the main room in Twilight's castle and they had all sat down comfortably Twilight launched into the account of what had happened with the pony calling himself The Black Fog. Rainbow giggled slightly when Twilight go to the part where the fog spoke. "Really?" she asked, "Twilight, fog can't speak," she informed her dryly. "Even a non-egghead like me knows that,".

"Well somehow, this can. Probably because it turns out this fog is actually A PONY. He also told me, STRAIGHT. TO. MY. FACE. That he was the one who killed Spike, so, get used to it," Twilight added savagely.

"Wait, Whoa! Whoa! Whoa! FOG killed Spike? That makes no sense," RD told Twi confusedly. 

"Be quiet an' listen to Twi's story!" AJ snapped, silencing her. Twilight cast Applejack a grateful glance and continued her story. When Twilight finished everypony's jaws were gaping in amazement. They sat there for a minute, to stunned to speak. Then, Fluttershy spoke the thought weighing in all of their minds,

"If this fog is killing for the fun of it, and since it can come and go like that," as she said that Flutter's clapped her hooves once and then queried, "How do we contain it?"

"I don't know," Twilight murmured, her new found vigor swamped by her former exhaustion. The task ahead suddenly seeming very heavy and Twilight feeling very small under it's immense weight. 

"Wait a minute," Rarity raised a hoof to stop their hopes from plummeting, "I think I have an idea," she stated as the beginnings of a plan started to form in her mind. 

"Well what is it?" Pinkie asked Rarity excitedly while bouncing around her chair. "Does it involve cake? Or maybe ice-cream? OOHH!!!! I get it now!!" she said thoughtfully, "I must be CUPCAKES!!!" Pinkie reported happily.

"No, Pinkie," Rarity said annoyed, "It does use any of those. Or ANY types of sweets for that matter, THIS is the plan," she announced as she drew them into a huddle so no pony could hear them and started to whisper while they nodded to show they understood. When Rarity finished Twilight exclaimed,

"This is a brilliant plan!!" then she hung her head sadly as Twilight remembered seeing Spike in his final moments, and how she had been helpless to come to his aid. "Spike must blame me for his death," she murmured, then a new  determination sparked in Twilight's eye's. "I may not have been able to save him, but I can avenge him, with this plan," she declared.

"Let's just hope it's good enough," Rarity responded grimly. Then they all exited the castle and began fanning out in different directions to search for The Black Fog. The pony who killed their best friend, Spike.