In the mist-shrouded world of Niflheim, at Hvergelmir, the Never-ending Spring.
The place where crystal-clear spring water should have flowed forth every moment.
The Never-ending Spring that should have nourished the hundreds of billions of mist creatures of Niflheim with boundless energy.
Had now become a vast ocean filled with black water!
Amid the surging black waves, the World Tree's third root descended from the heavens, from the void, from the primordial chaos itself.
And where that root plunged into the black water, countless enormous serpents, tangled into knots, ceaselessly coiling around it, were madly gnawing at the World Tree's root!
Beside the giant serpents raging through the black water lay a black dragon that was not especially huge, only slightly larger than the most ordinary dragon one might imagine, roughly three hundred meters from head to tail.
The black dragon lay prone, staring into the empty void before him, his eyelids twitching faintly.
"Whew..."
He opened his mouth and exhaled before smiling at the void.
"Welcome, my friend!"
The instant the black dragon finished speaking, an immeasurably vast Bifrost descended!
The rainbow light stunned the countless giant serpents for an instant, but only for an instant before they resumed their assault on the World Tree!
And the black dragon...
He watched Heisenberg emerge from the rainbow light, and watched a host of colossal beasts land steadily behind him.
Looking at them, the black dragon shook his head in boredom.
"Heisenberg!"
he said.
"You are very good, truly, but you have overthought this!"
"Oh?"
Having heard Nidhogg call his name the moment he landed, Heisenberg extended his hand toward Nidhogg with great interest.
"I am Heisenberg. This is our first meeting."
"I know. It will also be our last."
Nidhogg smiled and lowered his head. His enormous lips approached Heisenberg's