Kadota Peaks...
Somewhere along the Ellarian Coast...Months had passed since the Ravens Banner had discovered the skeletons in Iskjerne Cave, something which Sigurd Hring had ordered his miners and explorers not to disturb as they exploited the many tunnels and caverns. They found skeletons belonging to King Egill's leidang, with their pre-Oseberg styled weapons and motifs. King Sigurd's leidang had also discovered the better preserved corpses of the Taiyou soldiers who tangled with them. He had his own specialized trackers go in and examine the skeletons, learning as much as they could through careful collection and observation. Rusted rifles, spoiled shell casings, rotten fabric, clothing and other items were confiscated and handed over to King Sigurd's blacksmiths, who he had ordered to build a secret forge and workshop in order to study these finds and reverse engineer them. They were slow at getting started at first, but after a while their plan was completed. A handful of blacksmiths and their apprentices had taken the long and dangerous journey into the Kadota Peaks, a jagged mountain range winding up the Ellarian coastline. The climb was steep and high into the narrow mountains, leading above the low lying clouds to the tall cliffs and peaks several kilometers above sea level.
There up above the clouds on one of the flat cliffs overlooking a rapid waterfall with a large magical rainbow going across it, the legendary blacksmiths built their secret forge. As the months passed, King Sigurd's son Rollo would check on them from time to time to see their progress. Then one day, Brunnard the Blacksmith would be handed a small cylindrical device with wires attached to it. It would take him a full week to discover what it was. A few days later, he invented the first Norse automated battery using cave crystals, carbon-based materials, aluminum and copper, using a thin wired spinning torus-shaped generator to create a power cell that operated with perpetual motion. Brunnard's Batteries would never run out of power, instead generating their own unlimited artificial electricity, something later refered to as Kadota Peaks lightning or KP lightning, more similar to neon pink etheroplasma or magic than to AC/DC electricity. Rumors spread that Brunnard the Blacksmith was a descendant of Thor the thunderer, or that his forging hammer hitting the rainbow anvil was the cause of Iskjerne Bay's mighty thunderstorms. All these things were just whispers in the wind.
After a while, Brunnard would leave Kadota Peaks and make the long journey north towards Iskjerne Bay to report the workshop's status to the king, who was learning how to read and write from his Taiyou guest. Brunnard was all too pleased to take the journey, as the guards from the watchtower in Iskjerne Bay had seized Kraiger Nallesson and confiscated all the technology he had seized from the Taiyou cave miners and security personnel. All of it was sent to the secret forge several miles away in the difficult to get to mountain range where all of it was being studied and disassembled or modified, then replicated by hand by highly skillful alchemists, inventors, factory workers and nineth generation blacksmiths. They had developed a system so that by the time Brunnard and his personal guards had descended from the mountains, the Norsemen in the Kadota Peaks had continued their manufacturing and had already begun to design and craft better inventions.
With their new LED lights the Norsemen used greenstones from the lanturns they had used to find gold and diamonds in the Iskjerne Cave to create new innovative energy efficient lightbulbs of different varieties which used crystals and relied on Gaia's three suns to harness unlimited solar power. Fordorn the Wise had been the first to be inspired by the Rainbow Falls, and suggested that they design lights using multiple color spectrums. The craftsmen combined his ideas with others inspired by Iskjerne's sunstones to invent different ways to see through clouds and smoke, or detect heat signatures. They invented more concentrated light sources inspired by the Taiyou's chrome butane liter, combining their own discovery of KP lightning to invent high powered lasers and etheroplasma liters and other tools using Gaia's solar energy. The blacksmiths forged new weapons, helmets, headlamps, tools, armor and shields. From the weapons they collected and analyzed, they started mass producing assault rifles, hand guns, newer crossbows, something akin to fireworks and different powders for which to make different colored flames. Gunpowder itself wasn't very useful on Gaia, however, so the Norse alchemists invented a magical powder instead using a mixture of sun-dust and powdered narwhale horns. The sun-dust was made from very tiny metal fragments passed through the sunlight, and was rumored to get its energy from the faes, thus was also sometimes mistakenly refered to as silver faerie dust. They created electrum by melding gold and silver into an alloy, and started experimenting with larger weapons using the 12.7mm ammo that Kraiger had collected from the Type M2 machine gun. The gunpowder charged tungsten tipped bullet casings were not at all useless as the tungsten was analyzed and replicated by alchemists at very high constant temperatures.
The king's blacksmiths worked day and night, manufacturing weapons and armor. They had retrieved a phone radio from the luggage Kraiger had and studied it carefully. This technology enabled them to better understand phones and radio systems. They started experimenting with early radar systems and phonetic frequencies to generate sounds for other purposes. But it wasn't until they started delving into Iskjerne's cattle wagons, taking inspiration from their own wagon wheels and pully systems to craft solid metal wheels, gears, spindles and trinkets. They had already developed a device for calculating and keeping time, and it was only a matter of time before they invented motors, computers and rockets. Caile Douglasson from Clan Douglas had been in the mines that day, having witnessed King Sigurd's infatuation with Seno Miyagi's glasses. Although he hadn't quite figured out how to craft a pair of solar-sensitive sunglasses that became tinted in bright light, he picked up on glass-blowing and started to use the Norse colony's previous understanding of the light spectrum to design multiple different kinds of reading glasses, sunglasses, magnifying glasses, high-density lightbulbs, hammer-proof glass windows and visors, and glass blades that were brittle but much sharper than metal or bone. Caille Douglasson of Clan Douglas even recieved a gift of payment from Prince Hrollaug himself one day as the king's heir passed through with a company of others on horseback on their way south.
But the blacksmiths at the Rainbow Falls on the edge of the Kadota Peaks weren't only forging new inventions. They also continued to make other Viking Age tools and hardware just as they had done for centuries. They crafted nails for their ships, steel heads for their ashwood axes and spears, iron tipped arrowheads, belt buckles, cape and cloak brooches, earrings, gold teeth, rings, necklaces, chainmail, ringmail, scalemail, platemail, hammer heads, pliars, tongs, tin mugs, spoons and knives, platters, pots and pans, kettles, iron bosses for their linden wood shields, and many other items from copper, brass, iron and cold steel. They fashioned scissors, metal tweezers, wind-up wrist watches for keeping time, and all sorts of metal fasteners, cast iron tools, saw blades, rakes and anvils. These commodities would be manufactured in the workshops above the clouds on the edge of the cliffs, then imported to Iskjerne Bay on goat wagons by a man named Brokkr the Smith where they would be put to good use.