Vesperianus rode on his armored horse alongside the marching lines of 10100 men of the 9th legion, heading to Norwich. They were responding to a reinforcement request by the local garrisons about a massive uprising of the native populace.
"Keep marching men, it is not long until we reach those barbarian rebels in Norwich who chose to rebel against the might of Rome! We will free our fellow men trapped in their fort, and kill the rebels! It is time to show the rest of them to never to rise against Rome!"

"FOR ROME!" yelled the men down the line.
For 40 minutes the thousands of men of the 9th Legion marched into the dense woodland path which leads to Norwich, each legionnaire screening the forest line in case of the common ambushes that barbarians tend to use. Each minute feeling like hours to Vesperianus, as he is constantly darting between the front and back of the lines to give motivational words and to make sure that they aren't being ambushed. He hates forests, always in the way of marching legions and hard to ride cavalry effectively through, and perfect for barbarians to ambush a legion and quickly dissolve into the forest like cowards.

"Cheer up Vesperianus, we will crush these rebels, for they do not know we are coming"

"Oh Sentarius, you and I both know that even if they are unaware of us, they vastly outnumber us by the messenger's account. We will barely be a tenth of their forces. Not only that, but they know the land well and are known for using dreadful traps and ambushes. But we do have our own advantages. For what we lack in numbers we make up for in training, equipment, and power."
He emphasizes those last few words to push his point. Fully believing that these barbarians, although physically fit and numerous, do not have the coordination and tactical genius as the sons of Rome do.

"HALT!" A random centurion exclaims, stopping the marching line and every legionnaire raising their shields to watch the forests, waiting for an attack.

"What is it centurion," Vesperianus says while riding up to him, sword drawn.

"There is a line of oil here, on the road leading into both forests on either of our sides, I fear it may be a trap by the rebels."
Vesperianus ponders on this, should he march his men through it and may get his forces trapped in a ring of fire, or worse, set on fire themselves. Or spend precious time finding a route around the fire or to scout ahead and wait for a response, in which an army could approach or the garrison at Norwich could fall.

"We shall continue marching, but we need to be on our guard, for we are in enemy territory now. This may well be a trap by the rebels. MEN! CONTINUE MARCH, BUT BE CAUTIOUS, NOTE IF YOU SEE ANYTHING, BETTER SAFE THAN DEAD!"

"YES SIR!" the whole army yells back in response, drawing swords and spears and continuing the march, all weary of the large oil trail leading into the woods. It spans many men wide, and who knows how long it leads.
As each man marches over the oil trail, Vesperianus gets a little more nervous, for who would leave a trail of oil in the forest for no reason, and what purpose does it have. While these thoughts are going on in his head, the last few soldiers and cavalrymen cross over the oil trail. And for a few seconds, the tension of crossing the line eases off of the Legionnaires and Auxiliaries. That is until it is set alight and a large fire erupts behind them, spreading to the sides of the forest where the two trails turn in the same direction, and head to the front of the army, which then encircles the 9th legion in a rectangle of fire. As if on cue, which it was, the rebel army surround the army behind the fire, chanting and shouting insults and rocks to the soldiers as each forms a defensive shield wall along the line, protecting the auxiliaries in the middle. As the rebel shouts die out, they start chanting, much to the Romans' confusion.

"Commander, are they chanting?"

"I believe they are, for what reason I do not know but be prepared for them to charge."

"Sounds like they're performing a ritual of some sort"

"A ritual?" Vesperianus asked the Legionnaire who said the previous sentence.

"Yes, I recognize a few words they are speaking, I've made witness to many rituals of their people, but none like this. The only words I can recognize are "fire", "magic", and "destroy"."

As the chanting quieted down, the rectangle of fire began to shrink, causing panic amongst the Roman soldiers, as they realized this was not just a show. They planned to burn the Romans alive. As the rectangle got smaller and smaller, the Romans had to cluster closer and closer together, leaving the cavalry auxiliaries outside the defense of the infantry's shields. And much to the horror of everyone, when the fire reached the cavalry, they burst into flames, quickly burning them before they can scream, along with their horses, leaving nothing but ash where they once stood. Panic soon set in among the remaining troops, as the rectangle of flames engulfed more cavalrymen, and slowly encroached on the infantry. Each walked backward until each soldier was pressed against each other, tightly packed trying to get away from the flames, but the flames did not stop. As the first lines of Legionnaires were engulfed, many panicked and attempted to jump through or over the flames, only to have the same result. The cries of the dwindling Roman troops were met with a loud cheer amongst the Rebels, as the last few soldiers were finally engulfed by the flames, leaving only ash in their wake.

Meanwhile, in another world known as Equis, an Experimental spell is in the works of being made...

"Brown Everfree leaves... check. Potion of healing... check. Multiple colors of enchanted chalk... check... Okay, that seems to be everything we need for the spell." Princess Twilight Sparkle announces as she lists the materials needed for an experimental teleportation spell.

"So, Twilight, is thou sure that this spell will work, and not have any side effects or backfire?" asks the princess of the night, Luna.

"I'm sure it's fine. After all, Starswirl the bearded thought of it, and he has yet to be wrong"

A few human slaves make a large circle with white chalk on the floor of the throne room, with two guards watching them. As they finish they begin drawing a smaller circle within the larger circle, this time with red and yellow chalk, half red, half yellow. Then two more human slaves start arranging the leaves, equally spaced in between the larger circle and smaller one while Twilight enchants the leaves after they are placed.

"Alright, now pour the potion in between the leaves. No, you're doing it wrong! I said in between the leaves, not on them!" Twilight yells at the young male slave who accidentally poured the potion over the leaves. He realized his mistake too late as the guards seize him and throw him in the middle of the circle.

"Well, we know who one of the 'volunteers' for the spell is." a guard chuckled as he stepped out of the circle, staring daggers at the terrified human.

Twilight sighs and asks a servant to get another potion as they finish arranging the leaves and potions. Soon, though, two other unlucky humans are chosen to be test subjects along with the original one. Each one terrified at what might happen if the spell fails. What gruesome death they may have if said spell failed, they thought about, much like any other unfortunate human who was chosen to partake in risky magical tests or simply used as lab rats for experiments.

"Alright, I think that's it. This should work and teleport them to Manehatten. Luna, the other teleport symbol is ready over there correct?"

"Yes, I just received a message from Celestia that she has, and is awaiting for the teleportation spell to occur."

"Great, now let's get this started, everypony get back, this may be dangerous," Twilight exclaims as she reads the experimental spell in the book she has.

"Alright, then I think I got these down, ready everypony?"
A series of "Yes' " come from the guards and Luna, and a few weaker "yes ma'am's" came from the poor humans. Twilight then starts casting the spell, focusing heavily on casting the spell, speaking the enchantments directly from the book as her horn grows brighter to charge up the spell. As she does so, the chalk begins to glow and the leaves float in mid air. With the potion beginning to evaporate, and the red vapor circulating around the inner circle, the three terrified humans await what terrible fate that may have been cast into. The spell seems to be working, and the humans start to teleport, but then Twilight finishes casting the spell, everything suddenly stops. The leaves fall, the vapor vanishes and the glows dims to nothing.
"What? it didn't work! But... we did everything ri-"
Twilight is suddenly cut off by a massive bright flash coming from the middle circle, and the screams of the humans vanishing as well. Surprising everyone as the flash is launched out of the throne room through a, now smashed, window. Meanwhile, every unicorn in Equestria feels their magic draining, surprising everyone as the bright light soars through the air and smashes into Whitetail Woods. Draining all the consumed Magic and activating the massive teleport spell... Teleporting a certain 9th legion from earth, into the world of Equis...

To be Continued.....

Author's Note

Hello and thank you for reading my first story. Please like if you enjoyed the story and any constructive criticism is accepted. And if you detect any historical inaccuracies such as the wrong weapon types or tactics, please tell me in the comments so i may fix it.

Special thanks to legomanjk for editing this chapter.