You're terminated!
As the Saderan expeditionary army reach the other side of the GATE, they came across and can only see a desolate wasteland, little more than a sandy dust bowl and the occasion grouping of human skulls. More experienced soldiers said that this place, 'reeks of death'.
Then they came upon walking skeletons, whose bones are made of shiny metal, whose eyes glow red and are wielding weapons that even the most prestigious of the Sadera's mages can't comprehend.
The Saderan soldiers attack the metal skeletons, only to be destroyed in large numbers, and by the end of the day, the entirety of the expeditionary legion was annihilated.
The few remaining survivors were either captured by the metal skeletons to be tortured for information and later exterminated, or escape through the GATE and went insane from the ordeal, announcing doom and destruction of the Saderan Empire to the Senate.
Now, the Emperor and Senate brushed these soldiers' prophetic ramblings and dismiss them as madmen. They thought to themselves, along the lines of: 'it just a small setback. Next time, we'll just assemble another large army to defeat those from the other world.'
This was extremely naïve, as the worse is yet to come for the Saderan Empire. They don't know that they're dealing with a genocidal and advanced computer program that killed billions of humans through nuclear annihilation and millions more on its war on the remaining humans.
As in the weeks to come, the metal skeletons, numbering in the hundreds of thousands, marches through the GATE, the metal skeletons didn't stop, as each army was sent to stop them, was annihilated.
The metal skeletons didn't stop, even when Emperor Molt ordered 'scorched-earth' tactics to be used. Of course, he doesn't know the metal skeletons are machines, and machines don't need either food, water or shelter to sustain themselves.
And as each day passes on, a new messenger arrives at the Senate tells of a new story of horror that has occurred in a village or town, before said messenger breaking down at the atrocities being committed by the metal skeletons.
The messengers give off terrifying eyewitness accounts of how the metal skeletons gave little to no mercy to anyone, human or demi-human, nobility or commoner, free or slave, the metal skeletons either slaughtered them or drag them away to death camps.
Mercy was not something that the metal skeletons knows. Even the Saderan Empire will not so far to commit genocide.
Each day, as a new story of horror is described, fear and desperation grips the Emperor and the Senate, as they use every tactic and method to slow down the genocidal metal skeletons, all without success and with steep price in blood of brave men.
Even calling on Hardy, the goddess of the underworld to save them, was fruitless, as her flame dragons, whilst did have some success, was no match for the metal skeletons.
To say the other gods are pissed at Hardy's shenanigans of opening the GATE, is a bit of an understatement. Understandable, considering that the metal skeletons is murdering their followers left, right and center.
And to make matters worse, as metal skeletons with appearance of humans, infiltrate Saderan society, and they wreak havoc among the Saderan populace, killing important Saderan figures of government and military, with nothing to stop the infiltrator. One infiltrator even manage killed Crown Prince Zoral, with his head being split opened by the infiltrator's bare hands.
By then, Molt knew that his empire will be destroyed, with no hope of pushing the metal skeletons back to their world, only hold long enough for people to escape north.
Eventually, Sadera was under siege by the metal skeletons and was burnt to the ground, killing Emperor Molt, as he desperately gather the remainder of his forces, most of the Praetorian Guard, to perform a rear guard action. Many people ran, but only a few manage to escape the merciless onslaught.
In the course of two months, nearly native population was exterminated, the few survivors, who were unfortunate to be captured, was sent to death camps to be exterminated.
The fortunate, few survivors who manage to escape, hide in caves of the mountains. And in this desperate situation: fate, luck, circumstance and the ancient adage of 'the enemy of my enemy is a friend', would bring these people together, to survive and fight 'otherworldly metal monsters' from time to time.
Prince Diabo, now the last Emperor of now non-existent Saderan Empire; Princess Pina co Lada, leader of the Knights of the Rose Order; Panache and Hamilton, knights of the Rose Order; Lelei La Lalena, a enchantress prodigy; Tuka, the last of the high elves; Rory and Giselle, apostles of Emroy and Hardy respectively and Delilah, the last of the Warrior Bunnies.
A chapter of Falmart has ended, and new and horrific chapter of Saderan history has begun…
This is based off the Terminator films.