The following day, Derpy woke up to the light of Celestia raising the sun. She yawned as she stretched her forelegs and wings.

"Oh... that was the craziest dream." Derpy said. "Wonder what that was all about... I think I should head out for a nice morning flight to clear my head."

With that, Derpy walked out her door, and took off. She flew at a moderate pace, about the speed Fluttershy would typically fly if she was if she was in a daring mood. Even then, it wasn't too fast. She was enjoying herself... up until she happened to catch the attention of some ponies below.

"Whaddya think you're doin'?" a Unicorn mare called up at her. "Out to cause more trouble, huh?"

"You've got some nerve showing your face after what you did!" an Earth Pony stallion shouted.

Derpy gasped; she had forgotten all about what happened yesterday. Several of the ponies shouting at her forced her to relive her terrible time yesterday.

Almost immediately, tears welled in Derpy's eyes, and she flew off back to her house, crying all the way, at a speed that would definitely rival Rainbow Dash. She slammed the door behind her, sniffling and tears falling to the floor.

"I-I need a muffin..." Derpy whimpered. "...the one thing... th-that never lets me down..."

She laid on her bed, crying like she had been yesterday.

Some time later, the Mane Six, including Spike, had all shown up on Derpy's front yard after Twilight Sparkle had informed all of them about Derpy's meltdown that she witnessed yesterday.

Twilight knocked on the door. "Derpy? Are you okay?" she asked through the door.

"If you're here to scold me, JUST GO AWAY!" Derpy cried from her room.

Twilight looked a little worried, and so she stepped back. Rarity walked up to the door next.

"Oh, come now, darling. I'm positive that we are able to help you through the turmoil that has been forced upon you." Rarity said reassuringly.

"YOU'RE JUST SAYING THAT!" Derpy bellowed.

Rarity raised a brow. "My, my... Ditzy is really sounding much like I would." she remarked.

The group decided to enter Derpy's house, despite her protests, just to see what they could do.

"Aw, buck up, Sugarcube." Applejack said. "It's gonna be okay."

"NO, IT'S NOT!" Derpy said as she continued to cry.

Fluttershy shuffled her hooves a bit. "Um... Derpy, would you... like to come with us and... do something to take your mind off whatever's making you upset?" she suggested. "I-I mean... if you want to..."

"NO, I DON'T WANNA!" Derpy stated. "I'm not leaving my house, EVER!"

"C'mon, Derpy!" Rainbow Dash chimed in. "Ya can't just coop yourself up in here! We all love ya! We don't want you to trap yourself in a hole!"

"You're lying!" Derpy cried.

"Pleeeease, Derpy?" Pinkie Pie asked, just before she started trying to drag Derpy out of her bed by her hind legs. "Everypony wants to see your happy, smiley, li'l face—"

"I don't have a smiley face!" Derpy said as she squirmed around to free herself from Pinkie's grasp.

She walrused herself back over to her pillow and re-buried her face.

"Yes you do, silly!" Pinkie responded.

"Um, okay girls." Twilight said. "Clearly, Derpy needs more time until she's ready to talk."

Reluctantly, all of the Mane Six left Derpy's home.

Derpy lay crying on her bed, still very much shaken up by the sudden comeback of events from yesterday. She didn't want to believe that it all happened. She wanted somepony... anypony to be on her side.

"Why do you weep, my dear?" came a voice in Derpy's head. "Your day has only just begun."

"A-Arbmos...!" Derpy said. "...They are all still angry at me... all of them..."

"And now comes the time to change that, Derpy." Arbmos said. "Head out and show everypony who dares oppose you who is truly the one with power."

Feeling confident once more, Derpy stopped crying and stood herself up. "Y-you're right! I'll do it!" she said.

Immediately, Derpy was out the door. She set off to find her former boss, Captain Express, hopefully to try and be able to change his mind about a few things.

She found him eating at Cafe Hay, along with Parcel Post. It was Sunday, so they obviously had the day off.

"I still find it hard to imagine why Ditzy would submit herself to such clumsiness." Captain Express said.

"Oh, I'm sure it is unintentional..." Parcel said. "...because that wall-eyed, spineless jellyfish of a mare has the attention span of a housefly!"

Both of them chuckled. This hurt Derpy very much, she thought she would cry again.

"Do not submit yourself to weakness, Derpy." Arbmos said. "You must show them what they deserve... and I shall give you the knowledge to use magic to your liking on them."

Derpy took a few breaths to pull herself together. "O-okay... I'm ready." she said.

After waiting for the two to depart from the cafe, Derpy decided to catch up to them as they walked, talking to each other about some random crap that Derpy didn't care about.

"Ahem..." Derpy spoke up.

The two postal stallions stopped and turned around to see her. Both of their faces fell at the sight of her.

"Just what do you wish to put upon us this time, Ms. Doo?" Captain Express asked. "You are still on suspension! I am not giving you your job back for quite some time!"

"I really do not want to be in the presence of somepony who has such a level of carelessness!" Parcel Post remarked.

Derpy shuffled her hooves a little bit. "Yeah... about that..." she said, remembering what she had to do. She focused energy in her new invisible horn, and caused Captain Express' eyes to glow gold for a moment as his expression became indifferent. "...maybe you'd be willing to... cut me a bit of slack? Doesn't have to be a second chance, but still... anything would be nice."

Captain Express' eyes went back to normal, and he smiled. "Why, of course, Ms. Doo. I do not know what I was thinking when I did what I did yesterday. Most of the mail we recovered from your accident was, more or less, salvageable. With an afternoon's worth of work, we can create copies of the letters that were soaked, and get them all sent out again. With that being, I've decided to halve your suspension time, and give it with pay." he said.

Parcel Post's jaw dropped. "WHAT!? You can't do that! She completely messed up! Her punishment was fine how it was! She's STUPID!" he retaliated. "And Ditzy... what was that yellowish glow over your forehead that I just saw? What the hay is going on with you?"

"Y'know, Parcel..." Derpy said, focusing her Alicorn power at Parcel, causing his own eyes to glow the same color as the glow around Derpy's hidden horn; he was now also locked in a trance. "...I think you haven't gotten enough sleep. This is a nightmare; you've dosed off on the job, and you gotta wake up soon to get back to work."

Parcel's eyes were still glowing for a bit, but his eyelids began to slowly fall, as it looked like Parcel was getting tired. After a few seconds, he collapsed on the ground, snoring.

"Oh, dear." Captain Express said. "Looks like Parcel hasn't been caring enough to get his rest lately. I'll have to write him up for that!"

With that, Captain Express rushed off. Derpy, now feeling a bit satisfied, went on her merry way.

"Well done, Derpy." Arbmos said in Derpy's head. "You've taken the first step at utilizing magical thought manipulation; a weak form of mind-control. And your first sleeping spell was quite decent."

"Thanks, Arbmos!" Derpy said. "I'm really glad I found your horn!"

So am I, my dear... Arbmos thought.

It was a little bit later that Derpy ran into Twilight Sparkle.

"Oh, Derpy!" Twilight said. "You finally feeling better?"

Derpy nodded. "Uh-huh."

"Oh, good! So, what helped you to perk up so quick?" Twilight asked.

"Oh, see... I actually sorta... met somepony who helped me with my problems." Derpy said.

Twilight raised a brow. "Oh, really? Who might that be? Where are they?" she asked.

Derpy shuffled her hooves. "Well, you won't find them... he doesn't have a body." she said.

"Doesn't have a body...?" Twilight asked. "What does that mean?"

"Well..." Derpy began. "...he talks to me... in my brain."

"So..." Twilight began. "...some kind of spirit or something?"

Derpy nodded. "Yep!"

"Okay, well, when did you first notice that this... spirit began to communicate with you?" Twilight asked.

"Well... I found this weird Unicorn horn sitting out somewhere in the Open Lands, and when I touched it, that's when he started speaking to me." Derpy answered.

"A horn... huh..." Twilight pondered.

"Oh, and his name's Arbmos." Derpy said. "He said that he was a Unicorn when he was alive. He's teaching me about magic, and he's really nice to me, and—"

"But Derpy, you can't use magic; you're a Pegasus." Twilight pointed out. "You've got no horn."

Derpy's eyes widened after realizing what she said. "Oh, right... well, he's just telling me about it, just because I'm curious."

"I don't know what you've been up to, Derpy..." Twilight commented. "...but if I were you, I would cut down on... whatever weird thing it is that you're consuming."

Derpy hung her head down. "Okay... maybe I've just been going a little crazy or something. I think I'll head home now."

Derpy began to head off, but Twilight stopped her for a moment.

"But, before you go, Derpy..." Twilight began. "...would you mind telling me the name of this spirit again?"

"Yes, it's 'Arbmos'." Derpy said, before flying off again. "I'll see you later, Twilight."

"Arbmos..." Twilight muttered to herself. "...Arbmos... hmmm... in all my years of studying Equestria and the supernatural, I've never heard of any Arbmos. And a disembodied horn... I can't seem to recall anything like that, other than the horn of Star Swirl the Bearded being kept by the sages at the Starfall Temple."

Twilight sat where she was for a few moments, before returning to reality and to resume what she had been doing.

"Guess I'll try to look into this a bit later..." she said before wandering back off into Ponyville.