With enough iron, Rosen's heart was settled.

He filled the glass furnace with charcoal, used a heat-resistant clay crucible in the middle of the furnace, and began to pull the bellows and fill the furnace with oxygen.

"Boom~" The charcoal fire turned white again.

Rosen immediately picked up the tongs and placed the plough on the incandescent flame, which was quickly melted into molten iron and dripped onto the clay cauldron.

When the cauldron was half full, Lawson unleashed the power of alchemy and began to make it.

He started by building a ruler.

The barrel of the Spiral Troller works in a harsh environment and can quickly become severely deformed, so this ruler can truly represent the standard length. In order to avoid errors, the length of the ruler must be the same as that of the spiral troll, but the material properties are very different, and one of the most important features is that it will not be seriously deformed due to changes in temperature and external pressure.

He built a simple ruler, which was nothing more than a long, thin piece of iron.

Soon, the shape of the ruler was formed, and under Rosen's careful control, the length of the ruler was the same as that of the spiral troll, and the error exceeded the limit of the naked eye.

'There's a ruler, and there's less scale, but what can I do to be as accurate as possible?' Rosen frowned in thought.

The length of the ruler is 40 centimeters, at least to the millimeter, if the scale marking error is too large, it will be very painful.

After thinking about it, Lawson gritted his teeth: "40 centimeters is exactly divisible by 2, so I will use the bipartite method to mark the scale....... For the calibration of the middle scale, I go directly to count the metal atoms! ”

Just do it.

Counting atoms, of course, is not a number, if you really do that, Rosen will not have to do anything else in his life, he just makes a rough estimate, and the final error can be controlled within one-tenth of a millimeter.

In this way, Rosen spent a full hour inscribed a precise scale on the ruler, the smallest scale was 1 millimeter, and the distance between each scale could not be distinguished by the naked eye.

'Whew~'

Lawson exhaled lightly, looked at the ruler on the frosted surface, and said in a low voice: "Hmm~ You just call it 'Lawson's scale'." ”

He can assure that this must be one of the most accurate length measurement tools in the world.

With such a good ruler, the next thing is much simpler.

He continued to melt the molten iron to create parts for the Spiral Troll.

This time, with the experience of manufacturing glass needle barrels and barrels, and with the assistance of drawings, Rosen did it very smoothly, and basically got it all at once.

However, the molten iron was still too heavy and very draining, and for every part completed, Lawson had to spend at least half an hour to regain his energy.

Taking advantage of this time, Lawson will beckon Savi and begin to answer his questions.

By four or five o'clock in the afternoon, Lawson had successfully built 17 parts and carried out heat treatment according to the different performance requirements of the parts.

After the parts were ready, Rosen took a look at his alchemy talent tree, and he found that under the three-layer elemental friend talent, his proficiency had risen to 56%.

He was slightly happy in his heart: "Yes, yes, although the molten iron molding is a little tired, the harvest is still not small." ’

When everything was ready, Rosen did not immediately begin to assemble it, but first took a thick cowhide, carefully wrapped the scale, and then carefully put away the parchment on which the parts were drawn.

The ruler is delicate and easily cannot be worn. The big troll is a killer, and the drawings are easy to not leak. In Rosen's mind, these two things are much more important than the spiral troll.

When everything was cleaned up, he began the final assembly.

'Click~Click~Ding~Ding~'

The sound of metal collision is very crisp, every part is accurate in place, and the assembly is quite smooth, and there is no stagnation at all.

Savi asked curiously, "Master, what are you doing?" Looks weird. ”

Rosen put the last part on and said casually, "It's a weapon." ”

"Weapons? This shape, isn't it a war hammer? Savi guessed.

Rosen laughed dumbly, not to mention, if the barrel of the spiral troll is used as a hammer handle, the fat body of the gun can really be used as a hammer to smash people, especially the position of the runner for loading bullets, which weighs 4 pounds, plus other parts, it is about eight or nine pounds, and it can easily break people's heads and bleed.

He smiled: "Oh~ It can also be said to be a war hammer, and I also gave it a domineering name." ”

"What's the name?"

"Mjolnir!" Rosen laughed wickedly.

Savi didn't see that Rosen was joking, he shook his head: "The name is very domineering, but this shape, it doesn't look very good, and the power is definitely not very good, but it's a pity that this is so iron." ”

Rosen laughed secretly in his heart, he didn't say anything, just said along with the words: "It's really not good to use it to hammer people, I just made it to see." Okay, it's a little late today, that's all for now, I'll go back first, and I'll continue tomorrow. ”

"Yes, Master. I'll send you. Savi immediately said respectfully.

"Hey~ I almost forgot something." Rosen suddenly patted his head.

"Master, you say."

Rosen took out a piece of parchment and handed it to Savi: "This is the list of materials, it says some medicines, you can help me get it." ”

These medicines are some of the most common, and Savi is a native or a glassmaker, and he definitely has a lot more access than Rosen, as can be seen from the wrought iron he got before.

Savi took the list and looked at it, his white and chubby face wrinkled into a big bun: "Master, I have probably heard everything you want, and Sunderland Town should be able to get it, so I'm afraid ...... I'm afraid..... It will be expensive. ”

Rosen was overjoyed: "Hmm~ It's really better than me, I don't have a clue at all, it's just a matter of money for this guy." ’

He immediately took out a money bag and handed it to Savi: "There are 200 rums in it, it's not enough to ask me again, don't post the money yourself." ”

Savi was stunned, his face was moved, and he said seriously: "Master, this time is really enough. Don't worry, tomorrow morning, I'll give you all the medicines, and they'll be a lot! ”

Lawson nodded in satisfaction: "Then I'll go."

With that, he waved his hand at Savi and left the glass shop with the assembled spiral troll.

After buying enough food on the way, Lawson returned to the courtyard, hid the troll, and carried the food and water into the cellar.

There was a lantern in the cellar, and there was a dim light coming through, so Lawson went straight in, and when he got to the cellar, he saw Mary first, and after a glance, he said.

I saw that the abscesses on Mary's body had formed thick blood scabs, and the red spots that had not yet festered had turned dark brown, which was amazingly fast.

Rosen immediately looked at little Alice, little Alice's healing speed was even more amazing, the red spots on her body basically calmed down, only patches of brown pigmentation remained, her eyes also became quite bright, seeing Rosen, she trotted over and stretched out her arm happily: "Brother ~ Brother, look at you, my illness is cured!" I'm cured! ”

Rosen was happy and surprised, he really couldn't think of a reason, and it was impossible to dissect the two girls and study them carefully, so after thinking about it, he could only scratch his head and say, "Then let's continue the treatment." ”

This time, neither Mary nor Little Alice resisted, and the needle was poked on their bodies, and they just snorted and endured it. In their eyes, the shiny needle has become the most amazing thing in the world.

After the injection, Rosen carefully examined the blood of the two women, and the results were equally surprising, the drug concentration in the blood of the two women was at a normal level, while the spirochete pallidum became very small and could hardly be found.

It's amazing.

Lawson completely let go of the worries in his heart, he took out the food, and said, "Come, eat." ”

The two girls were obviously hungry, and after getting the food, they took a big bite to eat, and seeing that the two of them ate so deliciously, Rosen's appetite also improved a lot.

After eating and drinking, Lawson yawned and prepared to go back to his room to rest. As he turned around, he caught a glimpse of little Alice's face out of the corner of his eye. The little one was looking at him expectantly, as if he wanted to say something to him.