After deciding on the plan, Dallas changed his mind halfway, and Anne stayed near the Flower Hotel for the time being, secretly monitoring his every move.

Because Rosen wanted to build some weapons, he quietly returned to the Prancing Horse Mansion alone.

After returning to the mansion, Rosen went to greet Aunt Mary and Little Alice first.

During these days, life is stable, well-fed and warm, the two women look very good, obviously fat, especially little Alice, with a round face, a pair of blue eyes that can't be said to be smart, cute and cute.

After chatting with the two girls for a while, Rosen left little Alice some math problems corresponding to her level, and then he found Veronica again.

When he met Veronica, Rosen was taken aback by her appearance.

Veronica stayed alone in the bedroom, disheveled, her hair was messy, her eyes were bloodshot, and she had lost a lot of weight, if she was a delicate and graceful lady before, now she looks a little like Lin Daiyu who is sick, no, she is much more haggard and sloppy than Lin Daiyu now.

Looking at her room again, the table was full of manuscript paper, and there were a lot of paper balls and scraps of paper thrown on the floor, and the whole room showed a state of chaos that had not been sorted out for a long time.

"What happened? How did you make yourself like this? Rosen was dumbfounded, he had been out for less than half a month, how could he feel like Veronica had completely changed person.

Veronica glanced at Lawson angrily and slapped the stack of manuscripts she was holding on to him, "It's not you bastard! I didn't have anything to do with a calculus, and I didn't get a good night's sleep during this time. As soon as I close my eyes, all kinds of mathematical symbols and all kinds of ideas come to my mind! ”

"uh~~~"

Lawson is convinced, this mysterious monster's obsession with mathematics has reached the point of madness, and if she continues to do this, it is estimated that she will have to make herself look like a bone, and maybe she will become the first powerful monster to die because of a mathematical problem.

He couldn't help but ask, "You are so focused and have spent so much effort, have you figured it out?" ”

didn't think about it, Veronica listened, but her face was red, and her eyes were a little afraid to look at Rosen: "It seems to have figured it out, but it doesn't seem to have it." The front one is fine, but there is a demon called partial differentiation left behind you, and I have never been able to figure it out! ”

"Partial differential?" Rosen patted his head and looked Veronica up and down, only to see a look of grief that had been exhausted, and at first glance it was caused by drilling the tip of the horn for a long time and not being able to turn around.

It is very hard to study mathematics on your own, and if you don't know how to take care of your body and your talent is not strong enough, it is not impossible to kill yourself in a few years.

Even if Veronica's physical fitness is extremely strong, if a person can't get along with himself, the end will definitely not be much better.

After thinking about it, Rosen put the manuscript in his hand on the cabinet next to the door, grabbed Veronica's hand, and forcibly pulled her out of the room: "I need a helper in my alchemy room. Pack yourself up and come to the alchemy room to help me. ”

"I don't!" Veronica broke free of Lawson's hand with a slight force, took a step back, and returned to the room: "I swear, if I don't figure it out, I won't leave the room for the rest of my life!" ”

"Really?" Lawson turned his head and looked at Veronica with a smirk.

"Really!" Veronica looked serious.

Lawson reached out and took out a volume of manuscripts from his waist bag, flipped through them, and deliberately showed the title of the manuscript to Veronica: "Hey~ I have recently made some new discoveries, and I originally wanted to share them with you, but now it seems that I don't have a chance." ”

Veronica's eyes were sharp, and she saw it at once: "The mathematical principles of natural philosophy." Hiss~ What a big breath! ”

"Aren't you curious about the contents of the book?" Lawson waved the manuscript and deliberately took a few steps back, standing in the hallway outside the room.

These words poked Veronica's soft underbelly, she looked at the manuscript, looked at Rosen viciously, and scolded, "You are such a demon! ”

"Can't get out?"

"Rosen, you're a depraved demon!" Veronica gritted her teeth, but eventually walked out of the room!

Rosen laughed, put away the manuscript, turned around and walked towards the alchemy room: "I'll wait for you in the alchemy room." By the way, you tidy yourself up a little neatly, you look like you now, but you don't look like a lady at all. ”

Veronica listened, a little puzzled, she turned her head to look at the mirror in the room, and then exclaimed, the door of the room 'slammed~', and it was slammed shut.

Rosen laughed, and went to the alchemy room first.

This time, he has to deal with Bishop Amran, the mastermind behind the monster assassination. Judging from the clues from all sides, the upper limit of Bishop Amran's ability should be a four-star peak light magician.

Such a magician must be proficient in ray magic, and he must be very familiar with general attack magic. Moreover, as a high-level magician who has entered the house in magic, he must also have a few tricks to defeat the enemy.

The biggest problem is that Lawson doesn't know what these tricks are, and he doesn't have a clue at all.

If you want to deal with such an unknown enemy, it is very dangerous, and the best way is to sneak attack and solve him directly before the other party reacts.

To do this, Rosen's attacks had to be fast and ruthless.

"What kind of attack do you use? Ray? No, the other party is a light magician, using ray magic, the class gate has an axe, and moreover, ray magic is extremely energy-intensive, and energy supply is also a big problem. ”

With his current technology, he can only rely on batteries to power the laser, but the battery has a lot of power output. If you want to really meet the standard, the battery has to be very bulky, and when you are about to fight, you have such a big battery on your back, and you feel stupid and panicked just thinking about it.

"With my current technology, if I want to kill people, I still rely on bombs and muskets...... Wait, isn't a railgun feasible?"

Electromagnetic weapons also need huge energy to form lethality, but this thing has a long range, terrifying attack power, and the most critical thing is that the sound is still small, separated by a few kilometers, or even dozens of kilometers, as long as it is aimed, it can be solved quietly.

After thinking about it for a while, Lawson still rejected this solution: "The thing is very good, but unfortunately it is very difficult to make, and the energy supply is still a big bottleneck." ”

After thinking about it, I still have to continue to make guns and bombs, and the power must be great, such as meat grinders and muskets, which are already a little insufficient, and it is difficult to kill a monster with high defense and high strength like the Iron Orc.

In addition, the physical fitness of gun users is far stronger than ordinary people on the earth, not to mention Annie, let's talk about Rosen, he is now much stronger than ordinary people.

'A powerful pistol like the Desert Eagle, that's good....... No, the Desert Eagle is still not powerful enough, so I'll stick to the limits of my and Anne's bodies. ’

With this in mind, Rosen sat down at his desk and began to design a new, more powerful musket.

After drawing for a while, his heart suddenly moved: "Gun grenades are a good thing, much better than hand-thrown bombs, I have to get a few to use." ”

After about half an hour of drawing, the door to the alchemy room was pushed open, and Veronica walked in.

Rosen glanced up at her, she had already cleaned up, she was a lot thinner than before, but she was still bewitching and dazzling, of course, this person did not include Rosen, he had almost gotten used to knowing him for so long.

He gestured to the side, "Raise the fire for me, and I'll melt the iron later." ”

"Got it." Veronica complied, and after a while, she asked, "When will you show me that book?" ”

"I'll give you a new weapon when you help me."

"New weapons? Aren't your previous weapons powerful enough? Veronica said.

"Not enough. I'm dealing with a 4-star magician this time. ”

Veronica was taken aback: "You....... Is it impatient to live? ”

Lawson smiled: "I have hole cards." ”

"What hole cards, can you show me?" Veronica was skeptical.

"Absolutely." Rosen also had the idea of showing off.

He put down the pen in his hand, his mind moved slightly, and he used his invincible magic, and then said, "Come, you can attack me." ”

"A magic shield?"

Veronica was puzzled, but she walked over and tried to punch the shield, but unsurprisingly, the punch deflected off the shield. Her eyes widened and she threw another punch, but it was still out of the mark.

This piqued her curiosity: "Hey, it's interesting." ”

Then, she took a deep breath and threw another punch, which was filled with a faint white light when it was struck.

"Poof~"

This time, the fist did not deviate, and smashed firmly on the shield, directly scattering the runes crisscrossing the surface of the shield, and Lawson's brain was also suddenly dizzy, unable to maintain invincible magic.

In less than half a second, the silver-white shield dissipated without a trace, and behind the shield, Lawson covered his head with his hands, drowsy, and could barely form a continuous thought.

"This ...... How is this possible? He stared at Veronica's fist, dumbfounded.

His invincible magic was smashed with his fist before he could use it, which was too much of a blow to his self-confidence.