The jet-black card, exuding a crystal-like brilliance, is deep and mysterious.

Arria's gaze was instantly attracted, and her expression moved slightly, "This is...... Pass?"

"It was the teacher who left it. Starrail then gave a brief account of what had happened in the library and handed the card to Arya.

"Andres' card left here?" Arria said, surprised, taking the card.

Compared to Rheinfel, Andrés, the 'King of Oblivion', behaves more mysteriously and strangely, and has been unpredictable since his student days.

There are very few people who can understand his mind!

Arria didn't know him well, so she didn't know much about him.

She frowned slightly, carefully examined the card, and then injected magic into it, carefully feeling the magic circuit inside.

"The circuit inside is mutilated, and I haven't found a clue yet. Star Orbit: "I don't have much time, and I hope to find clues as soon as possible, so I asked my seniors to help me take a look......"

Alria nodded slightly, and although she was listening to Star Track, her mind was obviously more focused on the card.

After a while, her gaze suddenly retracted and fell on the magic guide circuit diagram on the table.

"I see......" Arria smiled suddenly, as if she understood something.

"What did the seniors find?" Star Rail hurriedly asked.

Aria flipped the card a few more times, and said slowly: "A kind of use of the three systems of wind, thunder, and earth, Andrés should have ulterior motives when they are fused. ”

Star Rail's eyes widened when he heard this, "What is the intention?"

"It's not certain yet. Aria shook her head lightly, handed the card back to Star Rail, and the magic power in her hand suddenly surged out, and the three elements of wind, thunder and earth fused and instantly condensed into a long sword.

Elemental Weapons!

Star Rail Rin, this is a four-star high-level magic technique, although the level is not high for Aria, but it can complete the three-dimensional fusion in an instant, which is already quite a terrifying realm for Star Rail.

"Senior, this is ......" Star Rail didn't understand Arya's intentions.

"Although I understand the mystery, I can't tell you so easily. Aliya said: "Cultivation cannot be achieved overnight, only what you comprehend is truly your own." ”

Xing Rail was stunned, only to hear her say again: "I only use one sword, whether I can comprehend it or not depends on your own ability." ”

She said that, she didn't give the star track any more time to react, and slashed out with a sword!

Although the star track was awe-inspiring, it was not slow to react, and instantly raised the starstream sword to block Arya's seemingly light but heavy sword.

Star Rail only felt that the wind, thunder, and earth triad on the elemental sword were instantly solidified, and he couldn't see the slightest fluctuation.

But the air around him vibrated violently, blurring his vision.

Star Rail was shocked, and he didn't know what this was about, so he felt a buzzing in his ears, and his eardrums seemed to be pierced, and the pain was extremely great.

Then, a strong feeling of vertigo erupted in his brain, making him feel as if the world was spinning.

At this time, the elemental long sword had just slashed at the Starstream Sword, and the Starstream Trail only felt that the Starstream Sword trembled suddenly and trembled violently.

Thunder swordsmanship!

This kind of experience, which he remembers deeply, is the unique swordsmanship that originated from the Witt family!

The longitudinal vibration made the star rail feel a powerful cutting ability, as if the starstream sword would be cut off at any time, and the edge was pressing.

Star Rail clenched the hilt of his sword, struggling to resist the high-frequency vibration, but the dizziness just now had not yet dissipated, and at this time, the high-frequency cutting rose again, making him feel as if he had fallen into an endless vortex, extremely uncomfortable.

But what he didn't expect was that Arya's serial offensive was not over yet!

After the sharp high-frequency vibration, there was still a wave of shocking momentum like a landslide and a ground crack, which suddenly spread out from the sword's body.

Star Rail only felt that the internal organs, bones, muscles, blood and skin, were all subjected to a huge earthquake, and in an instant, it seemed to turn over the mountains and seas, and almost wanted to rush up, and the skin around the body and face were full of blood, and they were red.

Even his golden pupils were filled with bloodshots, which looked extremely terrifying.

At that moment, not only his mind, but also Star Rail felt as if his body had been reversed and turned upside down, and no cell in his body was still in normal, but it was trembling violently, and it was difficult to calm down.

The huge force swept in, making him stagger back, slamming into the wall, for a while, he couldn't slow down, he could only lean against the wall, barely standing, adjusting his breathing.

With a wave of her right hand, the elemental sword instantly dispersed, and she looked at the star track that was still standing, and there seemed to be some surprise in her eyes.

However, she was not in a hurry to say anything, because she knew very well that the current star track would not listen to anything.

As he expected, at this time, the star track still felt like it was spinning in the world, and the muscles and blood on his body were also trembling violently, and it was difficult to calm down.

He had never experienced this kind of strange feeling, and it was unbearable.

It took him a long time to come back to his senses, and the redness on his skin subsided.

He looked at Arlya, who was still standing, and his expression was not without horror, "This sword...... What the hell is going on?"

Aria smiled faintly and said, "I said, this requires you to understand on your own, but it is beyond my expectation that you can still stand after taking my sword and recover so quickly." ”

Star Rail couldn't help but smile bitterly when he heard this, "This sword is so terrifying, I thought my body was going to be disintegrated...... If it weren't for the proper control of my seniors, how could I have been standing......"

"Any swordsmanship is not as effective as actual combat. Aria said: "If you want to be strong, you must constantly challenge others and challenge yourself, which is also my intention to teach by example, not words, can you understand?"

Star Rail looked straight and nodded, "I understand, thank you for the guidance of your senior......s! Got a clue......"

Aria nodded with a light smile and sat back in her chair, her long legs staggered, graceful and elegant, "So, let's continue with what we just talked about, what did you see in the Fourth Research Institute?"

Star Track's gaze froze, and the golden pupils burst out like a reflex.

"...... of the Fourth Research Institute" Star Rail clenched his fists, crackled, and said in a deep voice: "Those people ...... No, those inhuman fellows have done a brutal experiment......"

Star Track's voice deepened, slowly describing what he had seen in the Fourth Research Institute.

Alya's expression was calm at first, but the more she listened, the more shocked she became, even though she had always been known for her calmness, her expression gradually turned horrified.

As strong as an elemental goblin, he also felt a chill down his spine, as if he saw everything that happened in the research institute hidden in the dark corners of the world, distorting the common sense of this world!

*

The old man is fat, the first one.