The gloomy dungeon, damp and cold, the air is filled with the stench of decay and human body, and the smell is disgusting.

The mossy and mossy walls of the dungeon are filled with torches every few meters. The torches were "crackling" and burning, because the air was lacking in circulation and the oxygen content was too low, and it was emitting black gas produced by incomplete combustion, shining on the ground one by one, looking distorted and frightened.

"Tick tock", the condensed water on the top of the dungeon kept falling, dripping on the head of a dungeon guard, wetting the hair little by little, wetting the cheeks, and finally flowing into the neck, extremely cold. But the guards who were standing did not dare to move, and the muscles of their whole bodies were tensed together, like a dragoon's javelin stuck in the ground. Trying his best to maintain a steady breathing, the rest of his eyes involuntarily drifted to the entrance of the dungeon.

At the entrance, a young man, a young man of fifteen or sixteen years old, dressed in a somewhat overly simple aristocratic costume, walked in expressionlessly. Behind the boy, the captain of the dungeon guard was resigned, smiling all over his face, and his eyes were restless and frightened.

I can't help but be afraid of the captain of the guard, the boy is the youngest son of the king, and he is the second in line to the throne of the next king in addition to the eldest prince. As long as the other party is a little unhappy, he may be in a different place at any time.

Thinking of this, the guard captain's heart tightened even more, and the expression on his face was a little stiff.

Richard didn't pay much attention to the look of the captain of the guard. It has been fifteen years since he came to the current medieval-like world, and his supernormal psychology allows him to fully adapt to his identity, and know how to do it to accomplish his goals more efficiently, and then solve one of his ultimate doubts.

"Da Da", Richard stepped on the ground and walked towards the dungeon, and said to the captain of the guard: "I asked you to lead a team to capture wizards, or people related to spells and abnormal supernatural phenomena to give me research, you have carried out two successes, none of them succeeded, and they were all to catch a group of ugly-looking farmers to make up the numbers." And now, it's the third time, are you sure you really caught it? ”

"Your Royal Highness, this time...... This time......" The head of the guard captain instantly sweated, his Adam's apple shook a few times, and a stiff voice came out of his throat, "This time...... I'll make sure I've caught it this time. ”

"Tell me, what did you catch this time?" said Richard.

"Yes, Your Highness the Prince. The captain of the guard took a deep breath and replied, "This time, a total of four were arrested, a white-faced demon, a halfling, a vampire, and a ......."

......

"Dada...... Da!"

In the middle of the ring, Richard stopped in front of a cell somewhere deep in the dungeon, squinting at a figure in the cell. The complexion on the other party's face was abnormally snow-white, without any blood, and it looked extremely terrifying. He was sitting on the floor of his cell, looking at him with a panicked look.

The voice of the guard captain sounded, lest Richard didn't see it, and said, "Your Royal Highness, this is the white-faced demon that you caught, you ...... it."

Richard just glanced at it, and walked forward.

The captain of the guard was stunned, not knowing why Richard was not interested, but he still shrunk his neck and followed.

Soon, Richard stopped for the second time, and in a nearby cell, a somewhat strange figure was huddled in a corner. The other party's face was full of wrinkles, and he looked more than fifty years old, but he was less than a meter tall, like a child, which made people feel weird.

The captain of the guard explained: "Your Royal Highness, this is a halfling......"

Before he could finish speaking, Richard shook his head, walked forward again, and stopped.

In the third cell, there was a monstrous human, pale in appearance, and the exposed skin of his face, neck, and back of his hands was covered in red spots, and in some places had even rotted away. The mouth was slightly open, and I could see that the other party's teeth seemed to grow strangely, showing a strange blood red, which made people shudder.

"Wang ...... His Royal Highness the Prince. The captain of the guard pointed to the person in the third cell, obviously nervous, and said, "This is a vampire, you should be careful not to be hurt by him." ”

"Huh. Richard spoke, his tone a little cold.

"Your Royal Highness, you ......"

Richard spoke up, "An albino, a dwarf, and a porphyria, the white-faced demons, halflings, and vampires you caught?"

"This ......"

"Do you have any biological knowledge?!Well, I forgot, there was no biological knowledge in the Middle Ages, but that's not a reason at all! If you think about it, you should know that if they were really white-faced demons, halflings, and vampires, you could catch them so easily?"

"Uh, this ......"

"If nothing else, let's just talk about a vampire, do you see him like a bat in the legend? or can he fly?"

The guard captain's body trembled, but the next moment he was courageous: "Your Royal Highness the Prince, I really didn't see this evil vampire turn into a bat and fly, but the skin on his body really can't see the sun, and it will rot when he sees the sun, and you see his current appearance because of the sunlight on the road." He was drinking blood when I took him, and he hated garlic too......"

"Have you ever heard of porphyria?"

"Huh?" the captain of the guard looked stunned, "Porphyry...... Porphyrin ......"

"Porphyria. Richard repeated, and said in a voiceless voice, "There are many parts of blood in the human body, and one part of them is called heme. Generally speaking, the human body uses 'iron' and 'porphyrin' to produce heme under the catalysis of specific enzymes.

However, in some people, due to the lack of this specific enzyme, heme production will be impaired, resulting in extremely high levels of 'porphyrins' in the body. Once it sees light and is activated by ultraviolet rays, it will be converted into a "carcassic" toxin, resulting in a large area of erythema, herpes and even ulceration on the surface of the human body. The oral cavity will also be affected, and the gums will ulcerate and the roots of the teeth will be exposed, making the teeth appear to be particularly long, and they will gradually turn purple-brown due to the deposition of porphyrins.

At the same time, because heme cannot be synthesized and normal blood cannot be produced, porphyria patients will have severe anemia and must replenish blood from the outside world in order to survive. Intravenous delivery is a good method, but considering the current level of science and technology in this world, they can't operate it at all, so they can only choose another one - drinking - the blood-red vitality is extremely tenacious, it can resist all kinds of digestive juices, and can enter the digestive system and absorb it through the small intestine.

The reason why they hate garlic is also very simple, because garlic will have allicin in it, which has a strong bactericidal effect. Because of the special condition of their body, consuming garlic can induce and aggravate their symptoms. In fact, if you stab them with silver objects, they will also hate it, because silver also has a strong bactericidal effect.

You have to understand one thing, vampires are vampires, and porphyria is porphyria. Maybe the two behave in the same way, but they're not exactly the same! I'm asking you to look for something that is really the same as a vampire, about wizards and sorcery, not just a single patient, you know?

When you're capturing them, instead of resisting and killing, you're begging and crying, you should have a point in your heart, right? This was the case twice before, and the third time it's like this, and my patience is really limited......

"Your Royal Highness the Prince, I ......" The captain of the guard was speechless, and his heart was occupied by great fear. He had heard a lot of ruthless methods from His Royal Highness the Prince, and if the prince was really angry......

Richard didn't continue to entangle with the captain of the guard, walked to the deepest part of the dungeon, and said loudly: "You said that there were four of them captured this time, and the last one was a real wizard? ”