Nitroglycerin is very, very unstable.

This thing is extremely sensitive to shocks, and a drop of nitroglycerin, falling from a height of 1.5 meters to the ground, is likely to burn violently.

Its explosion is incredibly powerful, and can reach 16 times that of ordinary black powder!

Lawson didn't have enough raw materials and didn't have enough time, and the nitroglycerin produced was less than 15 milliliters, but it was still very dangerous.

He used his elemental control to gently wrap the nitroglycerin in the bottle, leaving it still, and poured the bottle very slowly, pouring the top layer of potassium hydroxide solution out of the bottle, leaving only pure nitroglycerin.

After doing it, Anne on the side sniffed the air lightly and said curiously, "What's in the medicine bottle?" Strangely, I've never smelled anything like this. ”

"It's a kind of oil." Rosen smiled weakly, he sniffed, and followed the fragrance to see the roast rabbit meat in Anne's hand: "The rabbit meat is cooked, give me a rabbit leg, I'm dying of hunger." ”

Anne hurriedly twisted a rabbit's hind leg and handed it to Lawson, followed by the water bladder.

Lawson carefully placed the medicine bottle away from the campfire, and then reached out to take the rabbit leg and water bladder, and ate it without caring about the heat.

Anne's craftsmanship is very good, the outer dough is slightly charred, and the rabbit meat wrapped inside is tender and delicious, although only salt is used as a seasoning, but it is better than natural, and it tastes unique.

Soon, Rosen gnawed a rabbit leg clean, even the bone was crushed and eaten, and he stared at the roast rabbit in Anne's hand.

Anne had to tear another rabbit hind leg to him as well.

A few minutes later, the second rabbit leg also went down and ate two rabbit legs. Rosen's stomach was much better, he let out a sigh, reached out and took out a third medicine bottle from his pocket, opened it, and the medicine bottle was filled with gray-white powder.

Anne looked over and wondered, "What is this?" It looks like mud and smells like it. ”

Rosen smiled: "It's mud, I call it diatomaceous earth, which is an adsorbent with excellent effect." ”

This diatomaceous earth is a good thing, on the earth, because the temper of nitroglycerin is so violent, it can be detonated by vibration alone, so it has always existed in the laboratory, and it has never been able to be practically applied. In order to solve this problem, the dynamite king Nobel was always looking for a stabilizer, and he tried various materials, and finally found diatomaceous earth, which made a safe nitroglycerin explosive.

It was with this explosive that he became a rich man.

Lawson estimated the amount of nitroglycerin slightly, pinched some diatomaceous earth powder in a three-to-one ratio, and gently sprinkled it into the nitroglycerin bottle.

"You threw mud into the oil?" Anne couldn't read it again.

"Well, diatomaceous earth can absorb fire oil, which can make the temper of fire oil very calm, and it will not burn easily."

As he spoke, Lawson activated the power of alchemy, mixing diatomaceous earth and nitroglycerin evenly. His movements were very, very gentle, and he looked as if he was touching his lover's skin.

Anne looked at the medicine bottle again, only to see a thin layer at the bottom of the bottle, and she became more and more puzzled: "With such ignition oil, even if it burns, it's not a big deal, what's there to be afraid of?" ”

She'd heard of fire oil, and the alchemists of Berkeley, the city of freedom, occasionally sold a very strong burning liquid, which they said was fire oil.

Rosen smiled: "My fire oil may not be the same as what other alchemists have made. ”

After ten minutes, Lawson mixed diatomaceous earth and nitroglycerin evenly, and the liquid explosive disappeared into a safe powdery solid. Rosen himself was sweating profusely again from his use of alchemy.

This time, without saying anything, Anne handed over the previously roasted rabbit meat, and Lawson took it and ate it, and in the end, the whole rabbit was almost all left to eat.

"I also need silver beads and silver powder."

"Here you go." Anne was ready for a long time.

Lawson took the silver beads, carefully examined them one by one, and found that the surface of each of these silver beads was quite smooth, without any burrs and protrusions.

He praised it heartily: "The craftsmanship is very good. ”

Anne smiled sweetly.

Lawson first poured explosives into the bamboo tube, pressed it tightly, then poured silver beads, pressed it the same way, poured some silver powder slightly, filled the gaps in the silver beads, and poured three layers in a row, and he poured all the silver grains into it.

After doing this, he carefully inspected the bamboo tube again with elemental perception, and while checking, he was still making various calculations in his mind.

'The heat of combustion of nitroglycerin can reach 1540 kilojoules per mole, and I have 15 milliliters here, which translates to about ........ Although the bamboo pipe has been strengthened somewhat, it is still insufficient...... Hmm~ need to be reinforced again......'

After precise perception and some ingenious calculations, Lawson has a fairly perfect control of the power of the bamboo pipe.

After sitting in silence for more than ten minutes, he suddenly stood up, looked left and right, took a bamboo pole, and began to walk back and forth in the cave.

In Anne's opinion, all of Rosen's performances were chattering, and she couldn't understand it, so she could only stay on the sidelines and watch in a daze.

After a few minutes, Rosen bent down to pick up a piece of charcoal from the side of the campfire, made a fork on a rock wall, and turned to look at Annie: "Annie, use your sword to poke a hole here, this hole only needs to be slightly larger than the bamboo tube, and the diameter of the front and back should be basically the same, the depth of the hole is slightly shallower than the bamboo tube, and the direction of the hole mouth should be the same as the bamboo pole in my hand, can it be done?" ”

"It's easy."

Finally, Anne didn't have to be a spectator, Anne immediately picked up the steel sword, glanced at the bamboo pole in Lawson's hand, and as soon as she raised her hand, the steel sword stabbed into the hard rock.

"Rub~"

The steel sword sank into the stone wall, and the depth was just in line with Rosen's requirements.

Anne's wrist twisted, and the steel sword body rotated, and with a 'zi~' sound, the stone powder clusters went down, and there was a very smooth hole in the hard cave rock wall.

Lawson walked over to inspect and found that the hole that Anne had stabbed with her sword was perfect for the requirements, and the inner wall of the cave was very smooth, as if it had been sandpapered.

Looking at it, Rosen suddenly felt wrong: "Annie, when you dealt with vampires before, why did you look clumsy?" ”

Anne gave Rosen a blank look and said proudly, "That's pretending." Let me tell you, in Holdeborg, there is not a single pursuer who is stronger than me in swordsmanship and younger than me. ”

"Awesome!" Rosen praised from the bottom of his heart, he didn't expect Anne to be a master of swordsmanship.

Anne was not very happy, she sighed lonely: "Hey~ No matter how strong the swordsmanship is, it can't be the opponent of a high-level vampire." Vampire Viken is just too strong. With the strength of one person alone, I am afraid that no stalker can defeat a high-level vampire. I estimate that it will take at least ten Stalker Masters to work together to have a chance of success. ”

"Not necessarily." Rosen smiled.

He wrapped another strip of cotton cloth around the bamboo tube, then shoved it into the hole in the rock wall, and twisted it from side to side again, and only after making sure that it was secure, he nodded with satisfaction.

Nitroglycerin is so violent that it may not be able to be suppressed by bamboo tubes and cotton strips alone, but if you add hard rock, there is no problem.

Later, Rosen drew a cross 10 centimeters above the bamboo tube with charcoal: "Annie, here is another sword, this time the stab is lighter, it would be good to poke into a small log." ”

Anne complied.

When the hole was made, Rosen poked a piece of wood into it, took the rabbit skin that Anne had peeled off, and used a dagger to cut two or three small holes in the rabbit skin.

Anne couldn't understand: "Good rabbit skin, why do you cut it, you can make a rabbit skin hat." ”

"Cover it up."

Lawson hung the rabbit skin on the stick, adjusted the position, placed a hole right at the launch port of the bamboo tube, and carefully cleaned the stone powder from the ground.

After making sure that everything was safe, Lawson took a few steps back, and after checking it carefully to make sure it didn't look abrupt, he really let out a big breath.

Walking back to the campfire, Rosen drew a line with his hand: "Annie, from now on, we will sit on this side of the line, remember, we must not cross the line." I'm not kidding, Anne, don't sit still, get out of your seat. ”

Anne nodded blankly and moved to where Rosen had requested.

"And then?" she asked. ”

Rosen walked over to where she had been sitting, there was a smooth stone, he crouched down, wiped it clean, and said, "Look here, the ground is dry, the air is warm, the view is wide, and you can go in and out, it's the best place in this cave, and the vampire Viken will love it." We'll leave that to it. ”

"......" Anne was speechless for a while, and she became more and more puzzled: "I only understand half of what you said tonight." Why don't you explain? ”

"You'll find out later. Okay, I haven't slept enough, I'll sleep first. With that, Lawson yawned, stretched, and lay down next to the bear corpse again: "If the vampire comes, call me." ”

The continuous high-intensity use of alchemy consumed too much of his body's energy, and his head was groggy and in urgent need of rest.

Anne on the side turned her head to look at the bamboo tube hidden by rabbit skin on the stone wall, and then looked at Lawson, who was sleeping peacefully, and couldn't understand where his confidence came from.

"Hey, are you asleep?"

"Don't be noisy, sleepy."

"Aren't we leaving? Just such a vampire? ”

"Well, yes, just wait for him to come...... I said, "Rest too." Don't worry, that guy won't sneak up on us when he finds out. He would intimidate us, threaten us, see us despair, watch us cry, and laugh at us until he had had enough. Well, let's not talk about it...... Sleep ......."

Before he could finish speaking, Rosen was silent.

Anne walked over and saw that the little thing was really asleep, and in the face of the threat of vampires, he was able to fall asleep, which ..... It's a wonder!

To be honest, Anne is also very tired and needs to recover from her physical injuries, and what she wants to do most now is to fall asleep like Rosen.

"Forget it, isn't it just a death, anyway, someone is with you, you won't be lonely when you die, I will sleep too!"

Anne lay down on the other side of the bear's corpse, and the sleepiness soon set in, and after a few minutes, she also sank into a sweet sleep.

She didn't know how long it was, but she suddenly heard a 'click', the sound of a branch breaking, and Anne was so agitated that her sleepiness disappeared: 'Someone outside the cave stepped on the dry branch I had put down!' ’

The dry twigs were a specially set alarm trap for her.

She sat up and looked at the bamboo pipe inserted in the cave wall for the first time, and after confirming that the bamboo pipe was safe and sound, she breathed a sigh of relief in her heart.

Unconsciously, she had great hopes for the bamboo pipe that Lawson had put so much effort into building, although she still didn't know what it was for.

She turned her head to look out of the cave, the sky was already white, the early birds were already chirping, she had slept for at least 4 hours just now, reached out and touched her stomach, the wounds on it had already formed blood scabs, her stomach did not hurt anymore, her injuries were basically healed.

She looked in the direction of Rosen again, and saw that Rosen was holding the hind legs of the bear corpse, sleeping soundly.

'What a weird little fellow. ’

At this moment, the light in the cave dimmed, and a figure appeared at the door of the cave, followed by an evil and mellow voice: "Oh, beautiful young lady, it turns out that you are hiding here, but it really makes me easy to find." ”