He now has a lot of souls in his hands, most of which were hunted by the Abyss Demon Realm, as well as three human souls offered by Lucius, and in total, Roy now has fifty-four lower souls in his hands.

Now that he had guessed that the soul was a special source of energy, Roy began to pursue the root cause of the demon's devouring soul to obtain magical power.

He thinks that what demons should use to devour souls is only the negative emotional energy contained in the soul, negative emotional energy, which refers to the feelings generated by living creatures before death, fear, fear, pain, greed, etc., and because it is often difficult for demons to produce this kind of emotion, the souls that Roy obtained from hunting other demons in the abyss demon world will be relatively small in size, and the negative emotional energy contained in it is naturally less, and the growth of magic energy obtained after devouring is also very low.

On the contrary, because human beings are more fragile and emotionally rich, they are more likely to produce more negative emotional energy when they die, which is also the reason why the human soul is relatively large.

Based on these theories, Roy conceived an approach.

He believes that demons simply increase their magic power by devouring their souls, and may not be fully utilizing the negative emotional energy in their souls!

So, during the two days he spent in the basement, Roy took out all the souls he held, and then classified these souls according to their volume, he selected a few souls with similar volume and soul power, and then began to experiment.

These souls were divided into two groups by him, one of which was used by Roy to devour them directly.

By devouring these souls and observing the growth of his own magic energy attributes in the system panel, Roy found that most of the increases he got were only hovering around 0.3 and 0.4, and a few of them could reach 0.5.

After recording this data, Roy began to plot in the system.

What he drew was still a potion pattern, but his definition of potion this time was a little different, and his definition was: [Magic Energy Amplification Elixir], [Refining Soul Product]!

And for the sake of insurance, Roy finally thought about it, and added another [maximum utilization], after making these three definitions, Roy put all the souls used as a comparison into it for preservation and embodiment.

Different from the previous exchange of embodied items, the magic energy amplification potion made by Roy can be made 100%, because the potion itself is the refining and extraction of the soul, one soul can be refined, and dozens of souls can also be refined, the difference is only that the quantity is different, and the volume of the extracted potion is also different.

Soon, Roy had an extra bottle of potion in his hand, and Roy just looked at it, and then raised his head and drank it!

He had previously obtained a total of 4.2 magic energy attribute growth by directly devouring a group of twelve souls, but this bottle of magic energy amplification potion extracted from twelve souls of the same size actually brought him 10 points of magic energy attribute increase after drinking it!

In other words, the efficiency of the Soul Extraction Elixir made through the system in this way is more than double that of directly devouring the soul!

Roy's idea was established, he felt that he was afraid that he would have to control his soul-devouring behavior in the future, although soul devouring could allow him to enjoy delicious food, but in fact, the utilization rate of energy in the soul was low, if he wanted to get faster growth of magic energy, then the best way was to use the system to make extraction potions.

Now, Roy's magic stat has grown to 23.5, and when he tries to use telekinesis, the amount of time he can last has more than doubled.

The increase in strength and speed brought about by the T virus enhancement has now stagnated, which means that the current potential of the demonic body has been developed, and the two attributes of strength and speed have also come to an end for the time being before a better body development potion can be made.

These two attributes only ensure Roy's hand-to-hand combat ability, in this case, Roy naturally has to find other ways, he also needs to develop long-range attack methods, etc., and long-range attack means require him to use high-quality souls for skill customization, and higher magic energy attributes are also the fundamental guarantee after making skills.

And in the two days that Roy stayed in the basement to do research, strange things happened in the small town of Transylvania.

In the space of two days, several people disappeared one after another, these people, all of them were homeless people in the town, and their bodies were found not long after they disappeared, and at first, people thought they had been captured by vampires, but when they found their bodies, they realized that they had been murdered!

No need to ask, these homeless people were murdered by Lucius, and the soul Roy received is proof of this, but the problem is that the people in the town don't know, Lucius is very secretive, so for a while, the people in the town are panicked and discuss who the murderer is.

However, at this juncture, Van Helsing and his assistant, the church monk Karl, came to this town.

The people of Transylvania, a small town that has been closed for many years, are already familiar with each other's faces, so as soon as Van Helsing and Carl appeared, the townspeople discovered these two strangers!

With weapons in hand, the two of them spontaneously surrounded them.

This town is in the shadow of vampires, so it is also extremely distrustful of strangers, this is because there are often guys who call themselves monster hunters, and they want to come to crusade against Dracula, the vampire Count, and these guys are all killed by Dracula without exception, not to mention, and often cause Dracula and his brides to turn their anger on the townspeople, bringing disaster to people.

Van Helsing and Carl didn't know this, so after being surrounded, they didn't know what was going on, looking at the cold and numb eyes of the townspeople, Van Helsing had no doubt that these people would rush up and kill them, so he had already put his hands behind his back and wanted to take out his weapons and prepare to defend himself.

"You, turn around!"

At this moment, a nice voice came from behind Van Helsing, and he turned his head to find that it was a beautiful blonde woman dressed in aristocratic clothes.

This woman is naturally one of the only remaining descendants of the Villeris family, Anna Villelis! Although she no longer has a noble title, the ancestors of the Villelis family were also wealthy, so her dress is completely different from those poor commoners in the town, especially those women with stains on their faces.

"Take off your hat!" Anna crossed her waist, tilted her chin, and said to Van Helsing, "Show your face!" ”

"Why?" Van Helsing asked.

"Because we don't trust strangers!" Anna replied, "And gentlemen, you must disarm!" ”

"Let's try it!" How could Van Helsing agree, the hand holding the gun tighter.

The atmosphere at the scene suddenly became tense, but at this time, another voice suddenly came: "I know who he is!" ”

People looked at the source of the voice, only to find that it was the mayor who hadn't shown his face in a long time!

"It's Baron Lucius!"

"Didn't he keep hiding in his manor, running away from the vampires?"

"Why is he coming out again now? Looks like I've lost a lot of weight......"

Ignoring the whispers of the people, Lucius said loudly as he walked towards Van Helsing from the crowd, "Gentlemen, I know who you are!" London, Paris, everywhere have your wanted notices posted, don't they? Van Helsing! You murderer! That's why you don't dare to take off your hat and show your true face, am I right? ”

After hearing Lucius's words, the townspeople were in an uproar, Wanted!? This guy is a murderer?

So, people immediately linked the murder of many homeless people in the town some time ago to Van Helsing!

"Damn, did he kill the people in our town?"

"It can't be wrong, although Baron Lucius is a little timid, but he is a nobleman and very well-informed, since he said that the other party is a murderer, then it will definitely not be wrong!"

"Murderer! He's the murderer! ”

"Arrest him! Burn him with fire! ”

Looking at the townspeople who gradually became emotional, Van Helsing couldn't help but smile bitterly, the wanted warrant is true, in fact, many of the monsters Van Helsing has hunted are actually turned into humans, and when these monsters are killed, they will change back to human appearance, which leads to many people who don't know the truth to regard him as a murderer, and he is wanted in various cities on the charge of first-degree murder!

Van Helsing didn't even have a chance to argue against this......