Somewhere inside Canterlot castle, one guard pony was flying for his life to the throne room.
“It happened. How they dare…”
“Princess! The worst just happened!” He said, as he finally made it into the throne room.
“Yea, I know! I can see it.” She answered, as she was looking through one of the windows.
A three legged, gray machine was standing right in front of the Canterlot’s walls, its laser prism out and looking at the creatures and ponies beneath.
Twilight looked at the royal guard.
“Go find Gallus and tell him I want everypony and everycreature to go help the wounded! I’ll load the W-Weapon!” She ordered.
“On my way, Princess!” He saluted and flew out of the throne room.
After the royal guard left, Twilight yet again looked at the machine through the windows.
“Let’s get you down.” She said, as her horn started to glow.
In a second, she teleported herself near the finished W-Weapon.
The turret looked like a turtle shell, but made of cement. A long and wide barrel was attached to the turret.
A steel door was on the other end of the turret, which Twilight opened.
She found two guards having a conversation under a small light bulb above them.
“-Don’t know. It would maybe make a bigger mess than the ot-” Then one of them noticed the purple Alicorn.
“Ah, Princess!” They saluted.
Twilight looked at them, then at the transparent barrel breech.
“If I were you, I'd cover my eyes. I will now load the ‘ammunition’.” She said, as her horn yet again began to glow.
As her horn slowly approached the cannon breech, several sparks appeared. When her horn touched the breech of the cannon, the entire carapace inside glowed for five seconds.
After that, it was ready to fire.
“Let’s just hope that Star Swirl was right in his book.” She said to herself, looking at the transparent cannon breech with a shining purple ball inside.
That was her magic. Let’s see if it can defeat the machine.
Twilight then looked back at the guards.
“Aim and fire immediately.”
“Now, Princess!” One said, as he took a seat by the left side of the cannon. The second guard, on the other hoof, slowly started to move the turret, thanks to the hydraulic horizontal mechanism.
Meanwhile Twilight left the turret and looked back at the machine.
Then…
A hissing noise came into her ears. A noise, she knows very well.
“Wait, is it about to-?!”
*Bzzzzzzzt!*
The machine fired another laser. But still, the 'Canterlot Shield' managed to stay in one piece! It seemed that the aliens were so surprised by the 'Canterlot Shield', that they forgot to check their surroundings again.
They didn't even notice that the end of the gun was pointing straight at their Tripod. The first guard pressed one button near the breech of the W-cannon and-
*BANG!*
There was a loud bang from the cannon. A few seconds later, a fast purple beam came out of the barrel, rapidly approaching the unsuspecting machine.
*BOOM!!*
When the purple beam hitted the shield, a loud explosion came into the scenery, followed by a deep black smoke and fire.
Now was the time of truth. Will this be a great answer against the invaders, or just a poor attempt to destroy one of the five Tripods?
Nopony said a word. Just watching, as the black cloud slowly raises into the air. Then the truth came out...
The machine was still standing!
Twilight expressions changed from one second to another. Sad, surprised, angry…
She sat and looked into the ground. There was nothing that could save Equestria now. By this failure, Equestria is doomed.
"There's no chance that Star Swirl's...hint in the books...failed here. How?" Twilight said looking up.
“Princess!” One guard came from the turret.
Twilight looked at him, with a let down face. But the guard… His smile was ear to ear. Twilight noticed it.
“Why are you smiling?”
“Look at the machine, Princess!” He just said, pointing at the Tripod, that it has a…smoke coming out from under its right window?
“What in the-” She wanted to take a better look, but the Tripod then just started…falling backwards onto the houses of Canterlot City!
"Hold your manes!"
*BOOM!*
When the machine fell, many houses were crushed into thousands of pieces.
Then silence...
Twilight was looking at the smoke, coming from another destroyed Tripod. Then she heard something coming from the castle gates. It was ponies and other creatures like griffins and even dragons that cheered!
“Ha-ha! Target Destroyed, Princess!” Second guard came from the turret.
“Oh thanks Celestia.” Twilight sighed in relief.
Then she looked at the destroyed Tripod, which was on its right side. Smoke was slowly turning into flames!
“Be ready, IF another machine would show up. I’m going to investigate the crash site.” Twilight once more ordered, before spreading her wings and heading to look, if anypony was inside that Tripod’s cage.
She was so preoccupied with the crash site that she didn't even notice AppleJack and her party as she flew over them.