Heras opened the curled letter, and the crumpled paper was scrawled in scribbled lines of lingua franca, the contents of which surprised him!

- The new chief technician of the Northeredan Technicians, McGonagall Mecca, has officially announced that the Society will temporarily suspend research on the gnome death rays, as energy consumption and lethality are completely disproportionate to subsequent research.

-- These idiots, when will they understand that purifying 'concentrated asphalt' is the most important thing, and blindly increasing the power output will inevitably fail!

-- The association has already begun to sell 'concentrated asphalt', old friend, I auctioned off all my production lines in Nose Redan, and I also applied for a huge loan from the goblin consortium!

- Since the gnomes have stopped researching, it's up to us to continue, it's the riskiest investment of my life, and if it succeeds, we'll make a fortune!

- I bought almost all of the 'concentrated asphalt' and put it in that bracelet, yes, the space bracelet found in the ruins of Godcry! Do you know how much I spent to get this bracelet? I've gambled almost half of my net worth, old friend, if you dare to disappoint me, see if I don't blow your head off! I swear by the name Grapp!

After reading the letter, Heras was a little surprised to pick up the white gold bracelet inlaid with blue crystals, and after carefully examining it for a while, he preliminarily concluded that no mental power was required to use this bracelet, which was similar to Algernon's space belt.

And when he put the bracelet on his left wrist, he immediately stood up in shock!

The bracelet has a spacious bedroom-sized interior, much larger than Algernon's belt of space, roughly about one-third the size of Heras's ruby ring.

But what shocked him was not this, but the inner space of the bracelet was full of refined so-called 'concentrated asphalt'!

The quality of these refined bituminous uranium ores is much higher than the ones that Heras had obtained in the twilight oil marshes!

"No wonder you have to use dense salt explosives as a safety measure," Heras sighed, if anyone opened the jewelry box rashly, as long as the explosion damaged the space bracelet even a little, the refined uranium ore in the entire bedroom in the internal space would leak out instantly, and it would be buried by these high-intensity radioactive materials, and it would be almost immortal

He had basically guessed how the orcs got the Thunderbird eggs, it was supposed that this goblin named Grapp was greedy when he escaped from Steam City, and couldn't help but steal some birds' eggs, and finally because of some accident, he lost them along with his jewelry box, allowing passing orcs to pick them up.

Heras then realized, if his conjecture was correct, then Grapp still had the intention of stealing the bird's eggs during the escape, indicating that the situation at that time should not be particularly critical? Thinking of the evacuation scene in the Chromie outpost, he thought that it was possible that the Northridan Technicians Guild had voluntarily abandoned this place in order to avoid casualties

"Maybe connect with the gnomes who have been evacuated. He pondered for a moment, then walked out of the igloo, which was full of steam pipes.

The thunderstorm was still raging outside, and Heras hurried into the house where the goblin was staying, it was dark inside, and he searched for a while, but found no one.

"Marlin!" he shouted, but no one responded.

"Where's this guy?" Heras walked out the door a little puzzled, braving the rain to look around, he couldn't have believed that a goblin would kill himself because of his heartbreak

Soon he saw Marlin at the top of a steam crane, the goblin lying on the crane boom, looking intently with a telescope in one hand, sometimes looking down on something in a waterproof engineering notebook.

Heras cast a flying spell and flew directly in front of the goblin, Marlin screamed as if frightened, and his foot slipped and was about to fall off the crane, Heras grabbed him, and saw that he was still holding on tightly to the waterproof notebook, and couldn't help but look at the place where the goblin had just been looking.

It's okay not to look at it, at a glance, the corners of Heras's mouth can't help twitching, he condescendingly looked at the roof of a house in the distance, even if he didn't have a telescope, under the clear scanning of the quantum brain, he still saw what was happening in that house through the round glass skylight.

In the bedroom below the skylight, Rotander was sitting in a chair, Edwin was on her knees, her whole body trembling on the lich's thigh bone, as if her lips were smeared with blood, and her hands were clutching the iron bar in front of her, and it was clear from the shape of her mouth that the undead mage was screaming.

The lich's right hand gripped the humerus of his left arm, reaching out from under Edwin's black robes to her upturned back, pulling at it leisurely like a saw.

Heras looked away after one look, and then he caught a glimpse of what was drawn on the goblin's waterproof notebook, the exact same scene, except that the lich was replaced by a mighty goblin warrior

"You'd better not let Edwin see this notebook, Marlin. Heras laughed and teased, then he put away his smile and continued, "Who is Grapp?"

Seeing that the goblin was still distracted, Heras picked him up and shook him vigorously, "There is a goblin named Grapp in Northreidan City, do you know him?"

"Uh, Grapp makes me think" Marin was shaken a little dazed, he tugged at his ears blankly, and then his eyes widened: "What?!Grapp?"

"He's one of the shareholders of the Goblin Consortium!he's a big arms dealer who specializes in war machines!" Marin said in a mixed voice, "Some of the terrible machines made in his factory can even fight against some powerful high-ranks!"

"For example?" Heras asked faintly.

"Electrochemical power mechas, as well as elemental high-explosive bombs and the like, he has extensive cooperation with many high-level mages, and only expert-level construction machinery controllers can barely handle such complex machines, but generally speaking, these high-end products are only equipped with ace masters. Marin said wistfully, "But the production of this kind of thing has not been able to be raised, and the cost and time required to make an electrified power mecha are staggering, and it is much more difficult than you to give birth to a high-level!"

Heras nodded, with the protection of these powerful machines, if they were not prepared to resist in the first place, most of the inhabitants of Norseredan City should be able to evacuate.

"It's okay, you can go on" Heras dropped the goblin casually and immediately flew towards the entrance to the subway in the middle of Kromie's outpost.

Seeing this, Marin pulled out his binoculars, got up, and resumed his drawing work on the waterproof note

The entrance to the subway is covered with a layer of iron plates connected to pulleys, leaving only a narrow gap. Heras probed around for a moment, then pulled a hidden lever, and with the harsh grinding sound of rusty pulleys, the wide iron plate gradually lifted up, revealing the real subway entrance, and Heras realized how spacious this entrance to the underground was.

The wide aisle steps stop in front of two closed iron gates, 10 meters long and 10 meters wide, and at a glance the front looks like a huge underground garage that has been enclosed, and the rainwater that runs down the steps is drained away by the sewers, and the iron doors are even dry before.

It seems that this subway is not only about transporting people, but also about the war machines. Heras looked at the huge corridor in front of him with a little emotion, it seems that technological civilization is indeed good at making holes

"The gnomes must have been evacuated from these underground networks, maybe I should go inside and see if there are any clues. Heras thought about it and walked to the iron door, and after a careful investigation he did not find any switches, it seems that the iron door must have been locked from the inside, and the only way to open it is to use violent means.

Looking inside through the crack, Heras preliminarily judged that the two iron doors were at least one meter thick, and they were made of some kind of refined steel, if they were destroyed by a fourth-level attack spell, it would probably drain his spiritual power and not be able to carve out an entrance.

However, he has already invented a force field magic, which is specially designed for demolition

Heras pressed his hands on the iron door, and instantly activated the spell configuration, his spiritual power revealed his palms, and under the effect of the spell, it began to transform into some regular oscillating force fields, and the oscillation frequency of the force field was gradually adjusted from low to high, and the quantum brain calculated the stress changes of the iron gate while analyzing the frequency.

It wasn't until the frequency changed to a certain value that the iron gate suddenly appeared a deformation that the quantum brain could detect, and he finally made a few fine-tuning adjustments to finally determine the resonance frequency of the iron gate.

Then Heras's mental power increased violently, and soon the entire outpost shook violently like an earthquake!