Prompt: The end of the world

They assembled the most discrete and aberrantly brilliant. In secrecy they prayed and designed and built it over a decade. In the final days before they used it, before world ended, they named it Shiva.

It was too large to deploy from the air and too heavy to tow behind a barge. Instead it simply remained in the tower it was constructed in. On the street seventy-three floors below, no one would realize what was housed inside it's benign facade. From the outside it was only a bank, but there was no money in it's vaults. Instead that money was poured into bringing The Destroyer to life.

No other bomb constructed bore a resemblance to it: Six large spheres orbited a seventh, smaller one: one covering each pole and one over each hemisphere. The design was inspired by previous concepts of implosion bombs, however the inward-firing explosives used to start the reaction were atomic in nature themselves. Only a kiloton each, they still provided more than enough force to crush the mass of plutonium at the center and create an explosion equal to ten billion tons of dynamite. Two hundred times larger than the highest-yield device ever detonated before, there was no need for it to be deliverable by jet or rocket - it would reach all targets.

Then, just before daylight, a prayer was uttered and it was detonated.

The flash of the initiating devices was so bright as to temporarily blind those looking in it's direction. A nanosecond later, the flash of the main unit was so brilliant and immense, that the world felt sunlight on the Eastern and Western hemispheres at the same time. Five hundred miles away, the light was intense enough to burn and blind any not behind cover. The flash burned shadows into walls, and turned grass and trees to flame.

Before the light had faded out, the hot compression wave had already reached the sea and set the surface aboil. Already the sky scraper it was born in had been pressed into the ball of liquid earth that melted beneath. The surrounding buildings were dismantled by the sweep of The Destroyer's arms. It ripped open tunnels and hillsides. It uprooted trees and crushed homes. The tremendous air pressure caused those within a hundred miles to have their muscles ripped off their bones without breaking the skin. Their lungs collapsed.

In place of the building grew a pillar of smoke and ash that lifted a fireball the size of a moon. It was lifted so high into the atmosphere that it was suffocated and extinguished. However, the stem still stood, miles across and seemingly infinite in hight. It turned slowly like a rooted tornado. The spinning continued for hours, and took weeks to settle in a cloud of fine dust.

The wrath left a molten crater that dwarfed nations. It dispatched millions and spread across half the continent and into the sea by hundreds of miles.

What destruction remained was carried across the world on high winds.

In a few years, the sounds of animals ceased. Crops did not grow. Babies died of leukemia. The survivors died, cowering in fear and muttering unheard prayers. A decade passed and finally all were lost to the anonymity of death.

What would remain would be unending fire and the roar of an angry god consuming the last of the Earth.