Isekai Rohan

Having satisfied his lust and desires, and bathing once more.

Asai now went around inspecting the tunnels that covered the walls sporadically like a honey-comb. Due to their many turns, bends, splits and falls. The entire party was now loss for directions. And finding the majority of the tunnels to having air flowing in, as the rock-wurm continued to forcefully shove fresh air into the complex tunnel-system. Unintentionally becoming the air-ventilator, as its large body continued to slam air-pressure throughout.

Asai had to wrack his brain once more.

"Robin, do you remember which way is north? Or south?"

The half-elf apologetically dipped her gaze, as she felt responsible for wildly flying without too much thought.

"Rosemi? Miku? Mizumi? Cotton?"

The little white bird tweeted angrily, before hiding itself inside Robin's damp hair. Treating it as if it was his rightful nest, it wiggled its butt until it was comfy.

"What's up with the crap summon..."

Pulling out a little bow, Asai filled it with clear water. Rosemi inched a little closer whilst the others continued to look for clues or indications for the exit.

"What's this for?" Asai then pulled out a little metal needle. Hoping that it would work similarly to electricity. He cast [Knife Throw] upon it, allowing his mana to linger within it for a longer duration than without. Slicing off the tip of the corkscrew from one of his many wine bottles. He lingered the needle upon it, before placing the two upon the water surface within the bowl.

Seeing it immediately swirl, pointing towards either north or south. He called out to Robin, who swiftly trotted on over.

"This needle points to either north or south. So either way is good. Robin, you're the most favoured and luckiest person I know. So, decide."

The half-elf and knight both tilted their heads in confusion, as they inspected the weird gadget that supposedly told of directions. Perhaps, if they hadn't met the man, and having known and experienced his many random, unexplainable shenanigans. They might've believed him to be either drunk or crazy. And yet, all it took was for Rosemi to recall her experience with him.

Back when he would repeatedly open and close his palm, twirling it around and asking whether or not she could see something. The dots now connecting, she intently inspected the needle upon a cork, that was floating within a bowl of water.

"Maybe there's something invisible at force here as well?" Rosemi poked the needle, causing it to shift before invisible forces wrestled it out of momentum and made it point into the same direction as prior.

"It's called a compass. But, this one is temporary."

"I see..."

Seeing Robin confidently march towards one direction, the group quietly followed her through one of many paths.

...

After an hour long walk.

From the dead and dirty tunnels that appeared to be dug by insects themselves, the tunnels slowly changed as ancient tribal paintings and drawings started to appear upon the walls. Another dozen minutes of speed-walking, and they came upon two great bronze doors, albeit one side was broken and laying upon the ground.

"Friend! Friend! Summon me!" Dwarven King Caronia pleaded.

"I thought you suffered from arachnophobia?"

"What the blood-hell is that? Just let me out."

Pulling the war horn out of [Caronia's Ring] the girl's quickly adopted battle stances as they prepared for war, one that required the assistance of a thousand dwarves.

"At ease, Caronia wants to talk." Not exactly wanted to call upon the rock-wurm, Asai quietly whistled into the artefact.

The dwarven king emerged out of mid-air. simply materializing before them as he ruffled through his unkempt beard. Surprisingly, he pulled out both a iron-shield and morning-star. 

"Aight lads, follow me." The man walked on over the collapsed door.

Asai took his chance to inspect the man's appearance. Looking past the crown that snugly sat upon his head, the dwarf appeared to be balding somewhat. Perhaps years of headbutting enemies that wore steel-plated armour and shields wasn't the brightest idea. As for his stocky body, chainmail hid all gaps in which his dwarven-armour didn't. Honestly, if Asai had to guess, the dwarf would be in between a power-lifter and a body-builder in terms of frame. If not, he simply couldn't explain how he could leisurely walk around with so much weight on. The man was literally a walking-tank, albeit a short one.

"I... I remember this place. It belonged to one of my cousins." Caronia scratched his head, hoping it would stimulate his memories into remembering any names from when he was alive. Yet, nothing returned to him. "Darn, I can't remember their names, but this door is definitely dwarven by design."

As he continued leisurely walking through the tunnel which was now turning into a hall. dozens of rooms opened up on both sides, with their doors equally broken down in some form or capacity. The contents were easily revealed to be many bunks of beds and storage rooms for mining-gear.

"This place, wasn't strictly for miners. The common people also lived here, governed by a noble family to boot. We had mines, homes, cities and kingdoms everywhere we did. Be it underground, over-ground and even upon the high-mountains.

There was simply no land we couldn't go and build our homes in. Our engineers were simply the best... But, with our aggressive expansion, and constant consumption of wood. Goddess knows how many trees we had chopped down. And I think- I think..."

Again, pausing to itch the top of his head with the mace. He tried to jog his memory to no avail.

"Darn it... Perhaps a few barrels of beer would help?"

..

"Interesting, so the dwarves basically conquered most of the continent, if not all. And stumbled upon something, or someone, or even the dragons. Or maybe they angered one of the goddesses? Which led to their downfall?"