Prologue:
The invincible beasts

A young pony was dragging his hooves sadly. He had try everything but there was no way out. He have lost everything. All he had now was his desire for revenge, but his opponent was too powerful for him so even that pleasure was stolen from him.

This is why he decided to do this. It would cost his soul, but his soul would go with a smile.

He grinded his teeth as he lighted the last black candle, and used his magic to cut his veins. The blood started to come, he felt a horrible pressure on his hooves as the blood continued to drain from his body. Strong Will grinded his teeth as he continued praying to the Fallen Angel. He hoped that he could make a deal before his last drop of blood left his body.

And right when Strong Will was about to lose all hope, his blood started to move on its own creating a pentagram.

“You’ve called?” asked a voice inside his head.

Strong wanted to respond, doing his best to remain conscious.

“What do you want from me?”

“Revenge. I lost everything, I tried to fight back but it was worthless. Even my request for help to the crown were intercepted. I have nothing, I am nothing. But still want my revenge. I am weak and meaningless. This is why I need to borrow your strength to fulfil my revenge. I have nothing but my soul. Please take it! All I want is to kill him.”

“Your whole live you’ve been an exceptional pony, Strong Will. But here you are summoning me the same way one of my servants would do. Wasting your life asking for a favor that I may or may not do for you. There’s no way back, you would die if I give you what you want.”

“But you keep talking instead of letting me die. That means that you want to help me. Right?”

“You are a perceptive one don’t you? okay, I’ll give you what you want but in exchange, your soul would descend to hell, and your body would be transformed into my messenger of death. An unstoppable force bringing death wherever it goes. If you accept your enemy would be the first of many, many victims.”

Strong Will smiled as his consciousness faded away. “Take it, my body and soul are at your disposition. Use them as you wish.”

…

Celestia’s prized warriors ran attacking the beast trying to get as much time as they could.

They went to a disciplined group of warriors who avoided kill at all cost to a group of scared ponies trying get as far as they could form the beast. They sent them magic attacks, spears and everything they could. But the creature continued to regenerate and chase them.

It even had a spear right on its forehead, and half of its body was covered in swords but nothing stopped it. It was a monster among monsters. There was no way to stop it.

“We need help from her Highness! She is the only one powerful enough to stop this thing!”

Somepony threw an axe to the creature, cut it in half. The wounds healed immediately and the poor pony who threw the weapon was unfortunate enough to be still on the creature’s attack range. The monster ripped off the soldier’s throat with its fangs, and then continued attacking until the soldier died. When it felt there was no life left on the soldier’s body it lost interest and started to look for a new victim.

The soldiers had no choice. They retreated. It was a shameful retreat, but they were too scared. It was the first time they faced something like this.

…

A pony general bowed before the newly crowned Princess of the Sun.

“Your Highness! I know we have failed but trust us! That horrible thing is a real monster. All the squads we send to fight it end up either decimated or too traumatized to keep fighting. We had no choice but escape!”

Celestia listened and could see the fear on her soldiers’ eyes but she did not like to intervene in a battle unless she had no choice. Her power was not to be used for war.

“Glad to help you my little ponies, but I don’t understand. Have you tried to use anti-detection or camouflage spells?”

“Yes Princess but that thing is like a living radar for life. Yes, life. That thing can detect intelligent life anywhere it goes and… please help us! Once you see it you would understand.”

Celestia frowned but in the end she agreed. The least she could do was look at this monster that her soldiers were unable to defeat multiple times.

“Alright, I’ll take a look on this creature and if there’s not another choice I’ll intervene. What did you do with this creature?”

The soldier bowed. “We created a huge hole with magic and threw it there. We’re taking turns to push it back. It tries to climb and we just push it back there. That was the only way we could stop it.”

“Okay let’s go!” agreed the Princess.

Soon the Princess along with an elite squad went to that city ready to stop the creature. The soldiers were nervous preparing their shields and weapons. But most of them were preparing a retreat.

The Princess approached to the hole, and felt a very dark aura coming form it. Celestia shivered. Now she was completely sure that she would have to intervene.

“Take it out. I want to see it!”

“Princess that’s a very bad idea.” warned a soldier.

“Do it!” commanded Celestia.

Several soldiers levitated the creature out of the hole who roared and started to struggle against the magic hold.

Celestia face the creatures, only to see the emptiness on its eyes and the murderous aura it emitted. As soon as she approached the creature started to struggle even more trying to get her with its fangs. Princess Celestia nodded, she had no choice.

The Princess sent a magic beam concentrating all her power reducing the creature to ashes.

She turned to her soldiers. “I owe you an apology my little ponies. I should know that if you summoned me is because you really needed my help. This thing was one of the darkest creatures I’ve ever faced and…”

“PRINCESS WATCH OUT!” warned a soldier.

Princess Celestia jumped just in time to avoid the creature attacking her. She gasped when she saw it was still regenerating.

“It can’t be! I made sure nothing was left from this thing!”

“Princess we’ve tried to incinerate it several times, it always regenerates!”

Princess Celestia used her magic to force the creature back to the hole, and used an especial spell to make the walls frictionless.

“Keep that thing there and be careful not to fall inside.”

“Yes, your Highness!”

Celestia frowned, this was a desperate measure, but they were out of options.

This was the first time the Princess of the Sun faced the horror of the undead.

“What are we going to do now Princess?” asked her captain.

“Send emissaries to Reptilia, the Griffon Empire and even the Changeling Hive. We need to announce the world the existence of this creature. And we need all the power we can gather to seal it away!”

Soon all the leaders of the Great Races have reunited over the improvised prison to take a look at their new foe.

Each of them tried to get rid of it only to realize it would regenerate no matter what. After they gave up when the monster was about to actually kill the Griffon Emperor they ended up combining their power to reinforce the seal over the creature.

“So this is the only thing we can do to defeat this creature?” asked Luna. “Lock it and forget about it?”

The Dragon Lord from that time shook his head frowning. “I like your sister’s idea as much as you do but we don’t have any choice here. This thing has proved to be invincible.”

“Yeah!” said Emperor Velkan of all Griffons, looking at his wounds. “Not even my most powerful spells were able to end it for good.”

“Thank Faust it is a stupid creature who only knows to use brute force!” said Golden Heart, Minotaur King. “Imagine you find a sentient one.”

“Please don’t summon the devil!” said the young Chrysalis.

“We must create especial prisons for the creatures if they show up in our lands. Contain these messengers of death should become our top priority.”

Author's Note

A prologue explaining the story of the creatures known as Undead Knights and the first encounter with the monsters. I hope you liked it, and well this would be the final installment of the story of the Undead Knights.

I hope you liked it and,

Read ya later!!