In hindsight, Twilight probably should have realized it was a bad idea to charge right into the mob of monsters. Of course, one does not simply act logically after seeing someone die right in front of you. Although Twilight truly didn't expecting one of the zombies to be able to open a door, since they never did that before. Perhaps that was another effect of the blood moon which allowed zombies to open doors.

Although Twilight's true problem right now was the fact that her boomerang just kept missing the enemies, especially the small flying ones. And if she did miss, the boomerang took a few seconds to return instead of returning immediately, which was precious to Twilight since she was unable to defend herself while the boomerang was flying away. Although Twilight did find it interesting that the boomerang was always able to return to her after flying away, even through the environment occasionally. As soon as Twilight was able to get home, or at least was experienced enough in this world, she would have to do some research into the various objects and events so she didn't have to just dump them all in a "doesn't make sense" folder.

Still, Twilight would have to make do with what she could get, especially considering she was still quite prone to dying from pretty much everything. As a matter of fact, her effective plead for death was finally answered by the blood zombie she didn't see sneak up behind her. As she reappeared back in the guide's house, she spotted the monsters making a beeline for her housing complex, which prompted Twilight to shut the door, before remembering they could open doors now. It came to Twilight that they might not be able to open doors if she blocked them off with something. Quickly rooting through her chest, she found a little bit of dirt which she then placed down in front of the doors on either side of the house. She did it just in time, too, as the various monsters were now unable to get through to her.

But now that the monsters were stuck on the outside of the house, Twilight wouldn't be able to get out and do anything without fighting through them first. She also realized at that point that the merchant and nurse weren't safe at all, since their doors hadn't been blocked off. Sighing, Twilight slumped down, trying to figure out how she would handle this problem. A quick glance outside told her the moon was still rising, which wasn't very convenient for her.

She didn't see any of the monsters jumping up to kill the others, though. It seemed as if they were all banging on her door only. While it was relieving that the others wouldn't die, it also meant Twilight had to deal with a lot more monsters than she first thought. She contemplated opening the door so she could whack at them, but doing so might allow them to crawl through. Although it was true that the penalties of dying weren't that great. If she did die, all she would lose was some of her money and a few seconds of being unable to do anything. Because of that fact, Twilight went ahead and opened the door.

All the zombies stepped forward, and immediately got stuck on the lone dirt block. A few seconds later, they walked away, only to turn back around and get stuck again. Twilight actually found it kind of funny that they didn't think to climb over the block.

But then one of the bloody eye monsters came through the gap. Apparently, they were smaller than the zombies and, thus, were able to fit through just fine. Unfortunately for it, Twilight was easily able to hit it as it was pretty close to her.

Twilight decided to open the door on the other side as well. And now that both sides were open to her, she got out her boomerang again and started throwing it at all the zombies, and the occasional eye things. Still, Twilight would be doing that for a while, and she might have to find something else to do in the meantime. With nothing else to do, Twilight began counting the monsters.

Canterlot

It was really difficult to avoid the presence of the giant floating brain thing. Most of the nobles didn't even notice it at first, considering they were all walking around with their snouts up and their eyes pretty much closed. The only reason they did notice it was because a more observant noble noticed it and immediately began screaming for his life. Then, all the nobles were greeted with the unholy roars of the monster brain itself, which began shooting giant eyes at it. This, understandably, freaked everyone out, and they started running around in a panic.

Inside the throne room, Celestia was sitting on her throne, with a long line of ponies in front of her. Every single one of them would walk up to her and suggest something, and then Celestia had to think of some way to tell them their idea was stupid while making them feel like they still had some semblance of power.

So when a monstrous roar was heard somewhere from outside, the nobles understandably freaked out, and they started running around in a panic. The only ones not running around in a panic were the Royal Guards, which were running around to take up defensive positions, and Celestia herself, which stood completely unfazed. She was mentally preparing to go outside and peacefully start negotiating with whatever monster decided it wanted to visit Canterlot.

Although she certainly wasn't expecting a giant brain monster. No matter. All she had to do was get close to it, try to start a conversation, and maybe eventually steer the conversation towards the manner of creature this thing was.

At that moment, one of the flying eye things noticed Celestia, and began flying toward her. Putting on her best diplomatic smile, she called out to it, hoping it might be able to give her some information. But, as it got closer, Celestia was able to see that it wasn't interested in diplomatic solutions at all. In fact, all she could see and feel from this thing was pure, undiluted rage, apparently being controlled by the brain.

The brain also noticed something. Through one of its eyes, it could see a pony that wasn't screaming terror. This confused it. Shouldn't they all be running in fear? It decided to follow that eye to whomever that pony was, so that it might be able to really teach it who the real boss was. The brain did know there were higher tier bosses out there, and it would gladly step aside to allow it to claim ruling position. Until then, it would be the ruler by default.

Celestia didn't want to fight. She had to admit that she had little experience fighting ever since her ponies weren't constantly in danger of being eaten by other races. And seeing this thing, she knew all it wanted to do was fight. Still, Celestia hoped she might be able to settle things peacefully, or at least convince it somehow to not terrorize everyone else.

As the brain thing just appeared right in front Celestia, they were able to see each other, and see that they saw each other. The brain seemed to have an army of the flying eye things behind it, and they all seemed to hate everything. The brain itself looked at her with hate as well, but it also seemed to be a lot more intelligent then the eyes, as it also showed curiosity.

"Hello?" Celestia said. She was dearly hoping for a response, and for this all to resolve itself peacefully.

In response, the eyes all shot at her at terrifying speeds. It was clear they intended to ram into her. At this point, Celestia wasn't sure she had any other choice in the matter. She wasn't going to fight it at her full strength, as she might also accidentally hurt her little ponies. She got into a fighting stance and started preparing whatever offensive spells she could remember, intending to just wound it.

The brain definitely didn't have any qualms about keeping the fight clean. It faded out of sight as all of its eyes swirled around her, closing in quickly. She fired a spell at one of them, and saw it bounce back a little before rejoining all the others. She fired a larger spell this time, which ended up exploding one of them while the others stayed circling.

Suddenly, they all rushed in, going right through her, which disoriented her quite a bit. Unable to keep her spells from damaging the surrounding area, she instead settled for physical combat. Then she heard a roar above her, which ended up being the brain itself. Seeing she didn't have to control her blasts as much into the air, she fired a larger spell at it. By her calculations, it was slightly more powerful then when she was fighting the Changeling Queen.

The brain didn't even bounce back from the spell. It had absolutely no scratches or burn marks anywhere on it, and screamed at her in such a way that almost conveyed laughter. Then it dropped down and engulfed her in some sort of strange spiked maw.

It certainly wasn't the best of Celestia's experiences. Being trapped in a giant brain that had spikes inside it for some reason was about as pleasant as you would expect. As she was inside it, however, she noticed something very strange. It appeared to be a giant heart which took up a majority of the brain's inside. As she looked at it, an eye opened right in front of her, gazing at her. She could feel the spikes jabbing at her from all directions, trying to weaken her, or maybe even kill her. Celestia decided then that this creature belonged in Tartarus. Gathering as much energy as she could, considering she was being squashed rather uncomfortably, she blasted a powerful spell at the eye. The eye closed, not expecting such an attack, before exploding into bits of flesh and blood which stuck in her fur. Then the brain exploded around her, and she dropped out of the sky. She realized the brain had floated up and was above some other area of Canterlot. She tried to slow her fall, but found the bits of flesh in her wings really hindered her flying ability, which meant she simply fell.

The other ponies gathered around her, concerned for their ruler. Or perhaps they were disgusted by the remains of the monster, and were just too interested to back away. This wouldn't be able to kill her, though. She had survived much more harrowing experiences, especially against Discord. But now that the creature was dead, Celestia had a lot of questions about it. What was it? Where did it come from? Why was it here?

She was pretty sure she knew the answer to one of those questions. She turned to her assistant, whom had followed her and the brain through the city. "Get a research team to Ponyville right now, with a large division of Royal Guards. I think that thing came from beyond that portal."

"Right away!" She turned and ran back to the castle to do what Celestia told her. Celestia herself stood up from where she fell, trying to look as regal and commanding as possible, even though she was covered in red. She decided she didn't really like being covered in the stuff and set out to the royal bathtub. There was a lot she needed to do.

Ponyville

Zombies and flying eye monsters were everywhere. A lot of them were prowling the streets in search of brains and whatever flying eye monsters ate, while more were falling from the sky in a steady stream of confused groans. Most of the time, they were able to chase after some of the ponies, but they weren't able to get to two quite colorful ones being guarded by some ice monsters. It was pretty much total chaos.

So when the flying chariots arrived to presumably end the monsters' partying, they were, understandably, annoyed. So they decided to gang up on the chariots and their occupants. The occupants were, understandably, annoyed, and fought back. Being in flying chariots, the zombies were unable to do anything. The flying creatures, however, were able to fly, which meant they were the largest threat to the occupants. They were really small, too, which meant they were really difficult to hit using both arrows and spells. And, while the ponies were trained in nonviolent methods of combat, the monsters had no qualms about killing. While they mostly smacked against the walls harmlessly, one lucky eye was able to go unnoticed into the formation of pegasi, knocking one of them into the other, which caused a whole chain reaction of pegasi knocking others out of the sky until they all meet the ground, where all the hungry zombies awaited them.

Forced into a fight situation, the ponies prepared themselves for the battle to come. But while the ponies had a limited number, the monsters seemed to keep falling out of the sky.

In the center of the fallen chariots were a few researchers whom, seeing their predicament, tried as fast as they could to get the communication equipment up and running. A few of the more observant eyes noticed this and decided they didn't want any backup coming in. So, going around the group, they managed to convince some more of them to collectively pick up a zombie and drop it in the group. Of course the zombies were unable to do anything except groan "Brains," so the eyes just picked up a random zombie. The zombie didn't seem to notice, and continued to groan at the ponies as it was lifted up and over the group of researchers. Then the eyes dropped the zombie, and together watched as bit all of the nearest ponies. A few seconds later, the whole entire group of researchers were dead, and starting to turn into zombies themselves. The rest of the group stood no chance as they were taken by surprise from within. Collectively, the eyes decided carrying a zombie was a real challenge for them, and decided to head off to a new bar. Apparently one of the bartenders took to the monster invasion quite well, and began serving her new monster customers.

Terraria

The blood moon was finally over. By Twilight's calculations, she had killed at least fifty of each of the regular monsters, and around twenty of the bloody ones. For some reason, Twilight got some banners for both zombies and demon eyes after killing fifty of each, which was rather interesting. Twilight hung them up after she got them, and wondered if they might do anything besides look nice.

At that moment, Twilight realized she had a message. Looking at it, she was overjoyed to have gotten the guide back. Although he wasn't the same guide, which Twilight was sad about, it was still a guide, which she determined she wouldn't let die. Approaching him carefully, she called out to him. "Hello?"

"They say there is a person who will tell you how to survive in this land... oh wait. That's me."

Twilight realized something really strange then, which she couldn't resist pointing out. "You look and sound like the last guide."

"You can use your pickaxe to dig through Dirt, and your axe to chop down trees. Just place your cursor over the tile and click!"

Understandably, Twilight was annoyed. In fact, she was just annoyed enough to facehoof.

Author's Note

My attempt at a recurring theme. Hopefully you didn't find it too annoying. Don't worry, I won't do it again.