What is a black hole?
It is one of the most terrifying natural phenomena in the universe, known as a gravitational monster or star devourer, usually formed from the collapse of supermassive stars.
This artificial black hole, however, is the ultimate creation of a geometric civilization's research on dimensions and microscopic particles. Its core is composed of highly dense neutrons, surrounded by a huge mass of special metal, with Element No. 9 used as an interlayer barrier.
Once the time was right, they would compress the neutron cluster from a higher-dimensional aspect, crossing the neutron degenerate force, making the inward-collapse gravity greater than the repulsion between microscopic particles and thus forming a miniature black hole!
To create this super-dense celestial body with a diameter of fifty kilometers, nearly an entire galaxy's resources were depleted, and it took a full thirty years to forge such a superweapon!
