Hidden in the exposed black gap in that urban area is a giant electronic railgun, powered by a helium triple nuclear reactor the size of two standard football fields at its pedestal.

This was originally a confined and isolated square space, and the only people who were eligible to contact it were senior employees, Octopus Servants, and a small number of low-level employees, but under the command of the school city's emergency security regulations, this place was finally exposed to the air.

The ceiling dome, floor, and walls in the space are all covered with a layer of steel plates, and a searchlight is placed on the wall every ten meters, and the bright beams reflected make it as bright as day.

A scaffolding-like steel platform surrounds the electromagnetic railgun, and underneath the platform is an autonomous transport vehicle, from which the Octopus Servant automatically unloads and pieces the transported parts onto the railgun before the electromagnetic railgun is completed.

Dr. Bain, who is from the school city, stands on the scaffolding beam platform that is flush with the electromagnetic railgun, and looks at this steel creature that symbolizes one of the highest forces in the school city with an indifferent and calm gaze.

Above the giant pedestal, two parallel metal rails were cylindrical, with a bright silver sheen on the surface, pointing diagonally upwards to the sky like beams, just like a swan stretching its neck, ready to sing.

At the central end of the two rails, a large cannonball was placed, and countless mechanical octopuses stretched out their steel tentacles and flew around the outside of the cannonball.

"Second level preparation of the human cannon."

The voice of the central brain resounded in this spacious space, and the mechanical octopuses surrounding the electromagnetic railgun quickly completed the maintenance work as if they had received an order, and quickly flew away.

Dr. Bane, who was standing on the beam, had not been involved in criminal activity for a long time, and his years of scientific research had made him less violent and more peaceful.

He glanced at the railgun, pressed a button on the console, and immediately mapped a three-dimensional projection from the console.

The projection shows the inside of the electromagnetic railgun shell.

Saya, a special creature cultivated by special cells, is huddled in the flat space inside the metal cannonball in the form of a green-haired little loli.

For safety reasons, a cushioning layer was deliberately placed in the internal space of the shell to reduce the G-force load caused by acceleration, so Saya looked particularly petite and pitiful as if she was lying in a sleeping bag.

Dr. Bane glanced at his creation, and in the spacious space, all kinds of sirens and prompts were sounded, and even though the school city had reduced the number of low-level staff as much as possible with the help of the Octopus Servant, the site of such a huge project was still noisy.

Dr. Bane stretched out his fingers the thickness of a turnip, pushed the gold-rimmed glasses on the bridge of his nose, and whispered to Saya with an expressionless face, "This is the first time you've shown it to the world, are you nervous?" ”

The girl in the shell tilted her head, and a meek smile flowed from her childish and innocent face, as if to say, "Don't worry about me." ”

“....”

Dr. Bane didn't say anything, just nodded.

The cannon of the world has forged his hard work, and Saya is a "daughter" for him.

Although Bane knew that after going through the three cumbersome procedures of the electromagnetic railgun's main control system, the second inspection of the mechanical octopus, and the third detection of the central intelligent brain, the probability of the human cannon malfunctioning was very small, but the nervousness still captured him, and a trace of undetectable anxiety flashed on his weather-beaten old face.

Those octopus servants were carrying out all the pre-launch work in an orderly manner, stretching out their tentacles and dragging temporary structures such as scaffolding to move backwards.

"Human cannon, three-level preparation."

The ultimatum from the central wisdom brain,Announcing the full launch of the emergency security regulations of the school park。

In the midst of all the antiquity, the helium triple reactor began to supply energy.

Enough to instantly evaporate the huge energy of an entire reservoir and pour it into the battery, the metal smelting technology from the Zitari people prevented the rails of the electromagnetic railgun from being affected by the high temperature and melted on the spot.

Bane clenched his fists a little nervously, and he stood on the crossbar platform, staring at the base of the railgun.

Even without a three-dimensional projection, Bane could imagine that Saya was lying in a confined space inside the shell,

"Launch."

The slightly pale electronic audio of the central brain filled the entire underground space, and with the wanton pouring of electromagnetic force, the barrel in the guide rail disappeared in an instant.

No, it's not that it's gone, it's because the initial speed of the trip is so high that it's beyond the limits of what the human eye can see.

Dr. Bain, who has undergone intensive surgery to reconstruct the human body, is still savoring the images that remain in the retina.

The cannonball-swept wind reached Bane, and he jerked his head up at the canopy in the distance.

The projectiles fired by the electromagnetic railgun climb all the way up, and the streamlined metal warhead minimizes air resistance to achieve the highest theoretical velocity.

In fact,In the estimation of the insiders of the school city,The warhead fired by the metal railgun, which is known as the "human cannon",Can easily break through the atmosphere at a certain launch angle,Close to the earth's orbital plane。

After cutting off the power source, the shell is recaptured by gravity and falls diagonally downwards – similar to a normal ICBM.

However, thanks to the technical capabilities provided by the Zitari people, the projectile fired by the electromagnetic railgun was able to reactivate the power jet device during the first fall and break through the atmosphere again - a process that can be repeated three or four times, depending on the amount of fuel carried by the shell.

This means that this metal cannonball, like a frog constantly leaping on the surface of low Earth orbit, can reach any corner of the blue planet with the help of the Earth's gravitational trap.

For electromagnetic railgun shells that can travel around the world, it is too simple to hit the Olympus ship suspended in the sky, not to mention the intelligent octopus woven into a large net around the ship, which is also connected from end to end, creating a huge magnetic field to guide the direction of the metal cannonball.

Zeus is worthy of being the god king of Olympus, and on the verge of life and death, he was able to hold his heart and summon thousands of thunderbolts to blast at the cannonballs.

Not only him, but Athena, the goddess of wisdom, raised her sword, Poseidon picked up the trident, Hades, the god of the underworld, took the hook and chain, and all the main gods used their own means to try to block the progress of the cannonballs.

Useless, useless, useless, useless, in the face of extreme speed and quality, those magnificent divine powers that are enough to level the mountains are simply too late to cause enough damage.