Looking at Boyle's spirit body, Todd turned his face to Richell, who had just walked into the soul space, and asked, "What do you think?"

The latter thought for a moment and gave the former an answer: "If it is in the real world, the soul summoned by the xenomorph will get rid of the control of the xenomorph and return to its original place after the ability is suspended. But in the spirit world, spirits can't break the barrier here, and can only wander within this space. ”

Todd looked at the pale blue ghost flying overhead, and said with a tingling scalp, "Is this the same as a dead man's soul living in my body?"

After thinking about it, Rachel reluctantly said, "There is a way that should work, let Deirdre use the psychic ability again and send him out." ”

After hearing this, Todd rejected the proposal without even thinking about it: "What happened last time almost killed the three of us, what if Deirdre sees Boyle again and has another ability that gets out of control?"

Rachel nodded, and later gave another suggestion: "It's really not possible, there is a last resort." ”

"What's the solution?"

"Remember the soul battle between you and Lawrence? Boyle's spirit body is also consciousness in nature, and if you attack him in the soul space, you can completely damage him and make him disappear completely. ”

Todd was stunned for a moment, and then looked at the ghost floating around in the air, his eyes wrapped in a layer of hesitation and reluctance: "Forget it...... Let's do this for now. ”

"Are you sure?"

"At least for now, he can't do any harm, and I'm interested in the human soul...... So let him stay here for a while. ”

Todd took Richer out of the soul space and returned to the small building of the Froststone Tribe.

After visiting Dildre, who was unconscious on the second floor, Todd returned to the tribal longhouse to begin the day's tribal affairs.

As soon as he walked through the door, Todd saw Ackerman, a bastard, and smiled at him with a YD smile: "Boss, you are really energetic and talented!"

"Huh?"

"One against two, all night, you can hear the cry of a woman early in the morning. ”

"Get out!"

Kicking at Ackerman, Todd secretly scolded in his heart: Energetic fart, Lao Tzu almost went into the coffin last night!

Sitting in his seat, Todd looked at the people in the hall and asked Alfonso first, "Where is the enemy now?"

"They camped ten kilometers north of the tribe. ”

"How many troops are there?"

"The regular army is more than three hundred, and the servant army is probably about eight hundred. ”

Ackerman whistled: "These armies are almost the entire reserve of the Kingdom of Ulster. ”

Caspar frowned and proposed, "Is it possible to organize the civilians to retreat south? ”

"I'm afraid it's not going to work. Alfonso explained: "There is an enemy cavalry unit patrolling the forests of the south, and if we were to organize a civilian retreat, we would inevitably be attacked by this group of cavalry. ”

"Then there is a dilemma at the moment, this war requires the division of troops, one to attack the enemy and the other to defend the camp," Todd said. ”

Alfonso said with some headaches: "The key is the distribution of troops. ”

Speaking of this, Todd suddenly asked Ackerman, "Weapons and armor from the south, no news yet?"

The latter shook his head.

"Now that the enemy's cavalry is blocking the southern routes, this war cannot count on this batch of equipment. Todd rubbed his chin with his hand, a little helpless.

Alfonso reminded Todd: "We now have only twenty-eight knights of the guard, two hundred gladiators, and one hundred barbarian warriors, barely having an army of four hundred. ”

Todd repeatedly assessed the strength of both sides and finally decided: "Alfonso, you lead the Knights of the Guard, Casper, you bring two hundred gladiators." Alfonso as army commander and Casper as adjutant, the two of you were in charge of attacking the enemy camp. ”

Alfonso hesitated a little: "Your Majesty...... Chief, in this way, the lieutenant general in the camp will only keep a hundred barbarian warriors, plus the defensive facilities such as the wall and arrow tower have not yet been built, and the military strength in the rear is really too weak. Shall I leave a team of knights to assist in the defense?"

"The key to winning this war lies in one word - fast. Todd said solemnly: "Our biggest disadvantage is supply, the enemy sees that our camp is not firmly established, and their strategy is obviously 'besiege but not attack'. By blocking the southern passages and the coastal shoals, they can completely cut off our sources of food and supplies. So, a quick fix is the only way out for us. ”

Seeing that Alfonso was still to be persuaded again, Todd continued: "A team of knights cannot have a decisive impact on the entire battle situation, rather than making the battle power evenly distributed, it is better to use good steel on the blade and break the enemy's main force in one fell swoop." Besides, it is not a simple matter for a group of wandering cavalry to occupy this camp. ”

Alfonso saw that Todd had made up his mind, so he stopped persuading.

Todd led the people in the room again, discussed the next tactical arrangements and logistics, and finally announced the dissolution of the meeting.

Before leaving, he said to Alfonso: "After lunch today, bring all your knights of the guard to me." Remember, bring your keels!"

Back in the small building, Todd saw Rachel busy cleaning up the hall on the first floor.

Tables, chairs, and decorations were placed in other rooms, equipment was placed on large wooden tables, and a variety of anomalies were placed on wooden shelves.

The originally spacious and bright living space suddenly seemed crowded.

Seeing Todd return, Rachel wiped the beads of sweat from his forehead and complained, "This place used to feel a little bit of home, but now it's your lab again." ”

Todd replied with a smile while checking the integrity of the experimental equipment, "When this battle is over, I will organize people to build a larger small building in the camp for xenomorph experiments." ”

Todd took out a small lead box from the wooden box and said to Richel, "Remember what happened to the Shadow Country? ”

Rachel glanced at the Amber Stone in the box and took a step back.

"Usually, as long as the box is closed and placed in a low temperature, there will be no problems. Todd closed the box.

The two set up the laboratory on the first floor, and after a brief lunch, Alfonso also rushed to the door of the small building with his men.

Todd contained a keel parasite from a knight of the Guards into a barrel filled with culture fluid, and asked Rachel to place the barrels one by one with his "mental power".

Todd then got all the lab equipment in place and began upgrading all the keel parasites with the Tyrant.

"In a cold place like the North, the keel that likes warmth will be immobile. Todd said as he injected the tyrant virus and cryo-energy bacteria into the keel: "And this black substance can assemble the cold-hardiness genes of the frozen bacteria into the keel." Not only that, but it can also make the keel absorb the cold air from the outside world, and then spray out through the secretory glands to freeze the enemy. ”

Richer watched the black liquid in the needle tube gradually enter the parasite's body, and asked curiously, "You said that these substances are poisons, won't this kill these bugs?" ”

"Interestingly, these black liquids are poison for intelligent beings, but for parasites, they are the key to evolution. Todd picked up another bottle of culture and pointed to the contents and said, "These are 'regenerating' bacteria, and they are injected into the keel along with the black substance. Without reducing the hardness of the parasite, it can increase the growth and change rate of the keel, so that the keel set of biological armor can change into various forms. ”

After implanting the "Enhanced Freeze" and "Enhanced Regeneration" abilities into the keel, Todd pointed to a bulge on the parasite's body and said, "This parasite is called the 'Hive', and it can shake the sound sac and send signals to contact the surrounding kind. ”

Rachel nodded, "I've heard a little about the 'Overwatch Town Massacre', but I was shocked when I first learned that they could be used as a communication tool. ”

"While this parasite keeps the heirs in touch with each other, it has two biggest drawbacks. First, the signal sent out relies on sound waves to convey it, which is easy to be heard by the enemy and is not conducive to concealment; second, the signal sent decreases with the increase of distance, and generally about 50 meters is the limit of signal propagation. ”

Todd took out another bottle of culture and said excitedly, "But, thanks to the discovery of the Tyrant virus, I have found a solution to the problem." The vial contains the "Sonic Shock" ability bacteria, which reduces the frequency of sounds, causing xenos to use sounds as weapons. ”

Rachel asked suspiciously, "I also know that this ability can make enemies faint and even shatter human organs. But how does it work with a hive parasite?"

"After the enhanced and upgraded 'Sonic Shock' ability gene, after being mounted on the 'Hive Parasite', it can reduce the frequency of the parasite's sound sac vibration to about 17 Hz, forming infrasound. ”

"Infrasound?" said Richel's face was foggy.

"Infrasound is also a type of sound wave, but it vibrates at a frequency of less than 20 times per second, which is lower than the frequency at which the human ear can receive sound waves (the human ear receives sound waves at frequencies of 20-20,000 hertz, and above 20,000 hertz is called ultrasound). Similar to volcanic eruptions, earthquakes, and thunderstorms, infrasound waves are generated, and although humans cannot hear them, they can cause harm to human bodies. ”

Richer was a little strange: "Since it's a sound, how can it hurt the body?"

"The frequency of infrasound waves is very similar to the natural frequency of human organs (the natural frequency of human organs is 3~17Hz, for example, the natural frequency of the head is 8~12Hz, and the natural frequency of abdominal organs is 4~6Hz). When infrasound waves act on the human body, human organs are prone to resonance, and if the power is large enough, it can also cause dysfunction or even damage to human organs. ”

"Oh......"

The expression on Rachel's face can only be described as "dazed".

"It's extremely penetrating, travels a very long distance, and has very little energy attenuation. Therefore, it can be used as a tool for the transmission of signals over long distances. However, the sonic power of the hive must be controlled within a certain range, otherwise it will form an infrasonic impact and cause damage to the body of the inheritor......"

Hearing this, Richer didn't understand what Todd was talking about, but that didn't prevent her from looking at the subject with adoring and fiery eyes.

After a full day of debugging and preparation, 28 pairs of "Dragon Bone Parasites" were upgraded.

The genes for the Cryo ability make the Dragonbone hardy and release cold air, and the gene for the Regenerative ability allows the Dragonbone to quickly repair and change form.

As for the ability gene of "Sonic Shock", it completely evolves the sound waves emitted by the hive parasite into infrasound waves, which not only greatly enhances the communication distance, but also effectively avoids the barrier of obstacles.