Exquisite, gorgeous, seductive, every detail made Rosen feel familiar, and just the day before, he had seen a similar temperament in the vampire Viken.

'This woman, she can't be a high-level vampire, right?'

'If it's a high-level vampire, why would it be in a small place like Sunderland?' ’

'Could it have something to do with the vampire Viken?' Will she sense the bloodmark magic on me? ’

With a breath, countless thoughts flashed through Lawson's mind, and his footsteps subconsciously paused, and then he suppressed the thoughts in his heart and strode towards the tavern counter.

'The vampire has very keen senses, and if I behaved unusually, I would definitely get her attention. ’

Walking to the counter, Rosen smiled at the waitress behind the counter: "Girl, a glass of ale wine, a bowl of boiled potatoes." ”

"No problem, give 8 coppers."

Lawson paid the bill and walked around the corner with ale and boiled potatoes.

Anyway, he was hungry, so he didn't think much about it, and ate a sip of ale and a mouthful of potatoes.

While she was eating, the girl in front of her suddenly sat up straight, took out a blank roll of parchment, a bottle of ink, and a quill from the leather bag hanging from a chair beside her, dipped the quill in the ink, and began to write on the parchment.

Rosen didn't dare to look at it for too long, and after a glance, he withdrew his gaze: 'She's writing?' She doesn't seem to notice me at all, which means that she shouldn't be able to sense the blood mark magic on me? ’

That's right. Each high-level vampire's bloodmark magic is unique, and they are usually only sensitive to the bloodmark magic they unleash. ’

Maybe I guessed wrong, maybe the other party is not a high-level vampire at all, but just just beautiful. ’

Thinking of this, Lawson's mind relaxed slightly, he stopped paying attention to the other party, and began to concentrate on eating food.

Just when he almost forgot that the girl existed, the woman in red turned around, beckoned to Lawson, and smiled, "You come here." ”

Because of this action, Lawson saw the other party's appearance clearly, burgundy eyes, high nose bridge, small lips, skin like mutton fat and white jade, and the facial features were so delicate that they could not be repeated, as if they had come out of a painting.

When she laughed, her eyebrows and eyes were crooked, and there was a sense of charm that hit the soul directly.

'It's a goblin! ’

Rosen was amazed, but more apprehensive.

'What is she looking for me?' Could it be that you have sensed the blood marks on my body? Don't be a high-level vampire! ’

Of course, the woman in red didn't know what Rosen was thinking, and she smiled: "Little one, let me ask you, have you ever studied geometry?" ”

"How many ...... Geometry? Rosen was stunned.

He had always suspected that the other party was a vampire, and was even more worried that she appeared to investigate the vampire Viken's disappearance, but the other party asked him if he understood geometry?

This style of painting is wrong.

The woman in red saw that Rosen was stunned, and shook her head in disappointment: "Looking at your clothes, it must be a child of a wealthy family, and it's a pity that you haven't learned geometry." ”

She sighed, turned her head away, and continued to draw on the parchment with her quill, sometimes pausing and frowning, sometimes writing hard, and with a rather attentive expression.

Here, Lawson doesn't do it, he has been a top student since he was a child. Especially in mathematics, not to mention the perfect score, he also won a gold medal in the Olympiad, and now he is thought to have never studied geometry?

It's a shame!

Of course, Lawson still has some sense, this woman in red is of unknown origin, and he will not come up to prove himself because of the other party's words.

However, it is still possible to sneak a few glances at the parchment in front of the other person.

'Hmph, with such a big tone, I want to see what you're capable of!' ’

Thanks to the body's superior eyesight, although the tavern was dimly lit, and although it was four or five meters away, Lawson could barely see what was on the parchment.

The parchment is painted with various geometric figures, such as triangles, squares, circles, and the like.

After a few glances, Rosen determined that the other party was studying plane geometry problems. In the beginning, she proved the Pythagorean theorem for right triangles, and then she proved that two triangles are congruent, and so on....... After doing a dozen simple plane geometry problems, she finally drew a curve and then got stuck there.

Lawson waited for a while, but the quill in the other party's hand still froze there and did not move, and his brows were tightly locked, and he never let go.

'Hey, you're having a problem, aren't you?' Rosen gloated.

He looked carefully at the curves on the other party's paper, and after looking at it for a while, the smile on the corner of his mouth became stronger: "Xiao Sample, with this little skill in plane geometry, you still dare to study logarithmic spirals?" You're going to spend your whole life on this, haha~'

On the earth, according to the order of development, the most basic is plane geometry, then solid geometry, and then Descartes introduced the coordinate system, which led to analytic geometry, and then non-Euclidean geometry, differential geometry, intrinsic geometry, topology, and so on.

The difficulty and order of these geometric classifications are basically the same, plane geometry is the simplest, and at the step of topology, the development of geometry has reached an extremely abstract state, and it is basically impossible for ordinary people to understand the content of topology research without hard study.

To understand logarithmic spirals, you need to go at least to analytic geometry and introduce calculus. Relying on the strength of an individual, to develop the coordinate system and calculus, two mathematical tools, without any foundation, is a fool's dream!

Therefore, if this lady in red really wants to fight the logarithmic spiral, she basically doesn't have to do anything else in her life.

Although his heart was secretly refreshed, Lawson didn't plan to go up to join in the fun, he finished the last two potatoes in his hand, drank the ale wine that was as light as water in one gulp, clapped his hands, and prepared to leave.

Unexpectedly, as soon as he raised his leg, the woman in red suddenly raised her head and looked at him: "You were laughing just now." You know geometry, right? ”

Rosen stumbled, and hurriedly held on to the table with his hands, only then did he stabilize his body, and there was already a storm in his heart: "How can my senses be so sharp, I was obviously very careful to peek." It's over, I guessed correctly, this woman is a high-level vampire nine times out of ten! ’

Rosen's heart pounded uncontrollably.

The woman in red frowned: "Your heart is beating fast. ”

'It's over! ’

Rosen was startled again, and when he was panicking, his mind flashed suddenly, and he had a countermeasure: "Ma'am, this is because you are so beautiful." ”

"Haha, what a sweet mouth." The woman in red covered her mouth and chuckled: "It seems that you have a good brain, and you should learn geometry well, right?" ”

Rosen secretly complained: "I have learned, but the level is average." ”

"It's okay, since you've studied geometry, come and help me look at this problem. Hmm~Can't refuse~"

Rosen wanted to slap himself.