"It tastes so good! It seems that I chose the right place. Waiting for Rui to swallow the delicious food in his mouth, this is the heartfelt compliment.

"How do you know I don't eat mustard?" but today's elf seemed to talk a lot, and after Sven bit off a corner of the pizza, he asked with great interest as he chewed slowly.

"What's so strange about this? We've been together for a long time, and we'll more or less learn about each other's little habits!" Hou Rui, who didn't think much about it, finished speaking, and bit off a large piece of pizza in his hand.

“…… That's right, there's really nothing surprising about it. But the elf repeated, as if suddenly more pleasant, picked up the pizza and followed the example of Hou Rui, and took a big bite.

Twenty minutes later, a seven-inch black pepper beef pizza, 60% of which went into Hou Rui's stomach, 10% into the elf's stomach, and the rest of the pizza was casually thrown on the plate, while the contented two were drinking beer and chatting, looking no different from other couples and tourists in the restaurant.

Not long after, when the elf saw the jewelry box on the table again, she suddenly said, "Wait, help me put it on, I don't want to give me the first gift you gave me, and grab it so casually in my hand for a while." ”

"OK1!" Without saying a word, Hou Rui stood up directly, and when he picked up the necklace, wrapped it around the back of the elf, and held the necklace with both hands to cover the elf's slender neck, Hou Rui lowered his head and was about to buckle the small metal buckle, but the elf suddenly whispered: "Wait a minute, this necklace seems to be a little wrong!"

"What's wrong?" Hou Rui asked with a frown, puzzled, he only saw the elf holding the pendant of the necklace with his hand, that is, the inconspicuous-looking cross, first put it to his nose and sniffed it carefully, then hesitated for a moment, and finally brought it to his mouth and gently added it with the tip of his tongue.

"Wait, there's a faint stench on this chain, very faint, and I can barely smell it when I get closer. The tone of her voice was unprecedentedly serious, and after the elf pulled the necklace from Hou Rui's hand, she stared and thought for a while, and then grabbed the bottle of ketchup on the table, turned the bottle and squeezed a little towards the cross.

At this time, Hou Rui, who had returned to his seat, did not bother the elf, and the tacit understanding that he had cultivated for a long time told Hou Rui that the elf was by no means a woman who was easy to make a fuss, and she was calm and rational by nature, and she would not do anything useless, so Hou Rui wisely chose to wait and see what happened.

After a while, after the elf and she vigorously wiped the cross pendant with a napkin, Hou Rui saw that the position of the cross smeared with tomato sauce was obviously white, although Hou Rui was not a senior chemical expert, he could also see what kind of wonderful reaction was happening.

"That's right! to react with acids, this pendant should be silver sulfide. After being busy for a long time, the elf finally raised his head and told Hou Rui the results of his brief experiment, and the solemn look on his face gradually turned into undisguised worry.

"Silver sulfide? So what's the matter, elf, didn't you say that this is an antique, and it's normal for a little oxidation to occur, right?" Hou Rui said subconsciously.

"There is actually a misunderstanding here, the silver has been exposed to the air for a long time, and the outer layer will undergo an oxidation reaction, producing a layer of silver oxide substance, which is manifested in the loss of luster and blackening on the surface of the silverware, but the upper layer is not silver oxide but rare silver sulfide, and the product of this layer is very thin, so I estimate that the reaction time will not exceed 24 hours, and the concentration of sulfur substances exposed to is also very low, and this is the strangest place. ”

Waiting for the elf to say these words seriously, Hou Rui's mind slowly became solemn, he looked at the elf with a straight face, and the inquiring eyes were undoubtedly encouraging the elf to continue to speak.

"Sulfur is very common in nature, it is a component of many amino acids, and therefore it is also a constituent element of most proteins, in other words, sulfur is also an important ingredient in many highly toxic substances, because this necklace was bought from the shop where you met with the Pope, then I can't help but wonder if this thing is part of the Pope's plan, like the alkaloids in the cake last time. ”

After the elf finished speaking, her eyes looking at Hou Rui had become extremely worried, and this worry had far exceeded the worries of her subordinates about their superiors, and was mixed with more personal feelings.

"Then you mean that I was also infected by this sulfur substance, but I didn't feel anything strange at all!" Hou Rui didn't distrust the elf, but the possibility proposed by the elf was already beyond the scope of Hou Rui's common sense.

Although the first person to doubt the Pope was Hou Rui himself, but last time in the Crown Cafe, Hou Rui was greedy for food, but this time things are different, in that souvenir shop, Hou Rui He didn't want to eat, he didn't even touch the Pope's body, if he said that he could easily be tricked, Hou Rui really couldn't accept it, wouldn't it be too bizarre?

"If I'm not mistaken, the problem is in the air, and before you enter that shop, the Pope has released some kind of high-purity sulfur-containing substance into the air, so that when you meet and talk, you are unconsciously polluted like this cross. The elf frowned, thought for a moment, and then made his own speculation.

"The air, but I don't smell the smell of sulfur, shouldn't the sulfur smell of rotten eggs? If the situation is really like what you said, I should have noticed it directly?" By this time, Hou Rui had already believed 7-8 points, and only the last detail could not be figured out.

This is another cognitive misunderstanding, high-purity sulfur substance is actually colorless and tasteless, and it is basically impossible to distinguish it by human facial features. The elf now solved all of Hou Rui's doubts.

"Whew...... , That's how it should be, I really didn't expect that I would fall into the Pope's trap when I gasped, this knight is really unpredictable!"

"What has happened, there is no point in thinking about it, let's hurry up and do a comprehensive examination, and find a way to metabolize the sulfur in your body, so that no matter what the Pope wants to do, the lack of a part of the formula is doomed to failure. After she finished speaking, the elf immediately stood up and left the pizza shop with Hou Rui.

However, the two Hou Rui, who were in a state of distraction, did not notice that the moment they got into the taxi, in a car 500 meters away from them, the two-person team of the legion was still quietly monitoring them with a camera.

It has been a while since the G company discovered the residence of Hou Rui and the elves, and the reason why they have not taken further action is that they hope to find Hou Rui's lair and the large army, but unfortunately the duo of the legion followed Hou Rui all day, but Hou Rui did not go to see the ape-man, honey badger and others, so that the legion that ran out of patience was ready to start, and simply captured Hou Rui and the elves, and then slowly asked for information.

So when Hou Rui and the others took a taxi and went straight to the nearest private hospital, the legion vehicles that followed them also changed from one to two, and the four of them surrounded Hou Rui and the two of them in the middle of the taxi, but because there were too many vehicles on the street, Hou Rui and the elf couldn't find the clues in time.

15 minutes later, because of the existence of the papal team, Hou Rui, who did not want to ask the organization for medical assistance, they came to the front door of an institution called the Pirante Memorial Hospital, according to the information queried by the elf with his mobile phone, this is one of the top private medical institutions in Rome with technology and equipment, and the reputation is also very good, and it is very respected by high-class patients.

As the saying goes, money can be channeled, and at first, the reception lady of this famous institution really didn't take Hou Rui and the elf seriously, but after the elf showed her American Express black card to the front desk ladies of the hospital, the attitude of the two Italian beauties immediately changed 180 degrees, and after smiling and inviting Hou Rui and them into the lounge, they immediately sent fragrant coffee.

After only 6-7 minutes of waiting in the break room, a gray-haired doctor appeared with two administrative staff members to receive them.

"Hello Miss Crick, I'm the vice president of the Pirant Memorial Hospital, these two are my colleagues, I don't know if you need our help when you come this time?" The white-haired old doctor shook hands with Hou Rui and Elf first, and then asked openly and honestly.

You must know that people who can use the American Express black card must use the black card to spend more than $250,000 a year, which is already a standard symbol of the wealthy class, so being able to know and serve the owner of the American Express black card is a valuable network resource for the Pirant Memorial Hospital, so the vice president will be particularly enthusiastic.

"Hello Mr. Dean, I am here mainly for this friend of mine, I have reason to suspect that he has been infected with some toxic substances, so I hope that your hospital can give him the most detailed and comprehensive examination to ensure his safety. The elf put on a worried expression and said solemnly to the dean.