When the laughter was over, Marlena put on a solemn look again, and said, "Okay, let's stop joking. There are two things that we have to do, otherwise we will not be able to complete the task. ”

Marina paused, then continued, "First, let's carefully explore where these space-time vortex lead. Caiyun, you have a deep knowledge of space spells, so this task is entrusted to you. If these spaces can go underground, that's great, and if not, you can also cast a space spell to teleport us underground. Once you're underground, you'll need to take the second step to explore the ancient city and search for the location of the dragon mound, preferably to find a shortcut to the dragon mound. ”

After hearing this, Caiyun nodded frequently, and said, "Okay! Then if we find a shortcut that can directly enter the dragon mound, why don't we go in first to explore it?" After being familiar with the terrain and environment inside, we don't have to explore it again when we take the young lady into the dragon mound in the future, which can obviously save a lot of energy. ”

Marina pondered for a moment after hearing Caiyun's suggestion, and finally shook her head and said, "Let's not act rashly for the time being, so as not to alarm the dragon god, and there will be extraneous branches at that time." Since Senior Sister wants us to wait for her to come back before entering the Dragon Tomb together, there must be a reason for her. ”

"That's true, it's because I didn't think about it enough. Let's just follow the orders of the young lady, and we can't make our own decisions and act on our own. ”

With that, Caiyun waved his left hand lightly, and a rainbow-colored spiritual power immediately floated into a space-time vortex below.

Caiyun closed a pair of bright eyes, and used his very strong willpower to manipulate that wisp of spiritual power, and fell into the depths of the whirlpool, exploring where the other side of this spatial tunnel was.

After a while, Caiyun opened her eyes, and a smile suddenly appeared on her face, as if she was very satisfied with the outcome of this exploration.

"How's that? Can you determine the structure inside this vortex?" asked Marina hurriedly when she saw Caiyun open her eyes.

"Of course, there is nothing in the whirlpool, just a spatial tunnel-like existence. If it weren't for the influence of the dragon god's spiritual power, these vortices would not have possessed such a powerful destructive power. The other side of this spatial tunnel is indeed underground, after all, the opportunity for the formation of a space-time vortex to another world is very complicated, and it will never appear easily, let alone densely lined up. With the cultivation of both of you and me to resist the suction near these whirlpools, it should not be difficult to sneak underground. ”

Caiyun explained her findings and insights to Marlena in detail, and Marlena listened carefully and said, "In that case, we don't have to waste our time, let's set off for the underground ruins now." ”

The two of them jumped down from the hill together, and jumped straight into the thick fog that had permeated the past hundred years and had never dissipated, and began to approach the space-time vortex that was only about three feet away from them.

The powerful suction that can tear and destroy the space is constantly attacking the two of them, and this invincible strong suction force is like hitting an iron plate when it encounters Marlena and Caiyun. Before they could get close to the two of them, the suction force was instantly dispelled by the aura that spread around their bodies, and it couldn't cause anything to them at all

Effect.

This is a space-time vortex created by the spiritual power of the dragon god, and its power is enough to put some mediocre immortals in the heavenly realm into great danger when they approach, which is enough to prove that the cultivation of Marlena and Caiyun has reached an incredible realm.

In a matter of moments, the two of them were in front of the space-time vortex, and they did not hesitate to burrow into it, one after the other.

A severe dizziness like the reversal of yin and yang hit the two of them, as if the sky and the earth had suddenly reversed. This shock, which can make people lose consciousness instantly, does not cause any discomfort in the two of them.

When the dizziness vanished, they came to another dimension, and what appeared in front of them was a darkness that could not be reached.

The sudden pitch-black environment made Caiyun feel a little uncomfortable, she immediately calmed down, opened her eyes, and entered a state of spiritual vision that ignored light and darkness, clarity and turbidity, and chaos and chaos.

Everything in front of me was suddenly no longer blurry, and it was vivid, as if it was suddenly exposed to the blue sky and white sun.

The first thing that catches your eye is the gray-brown stone walls on the left and right, which seem to be very narrow, and the distance between the stone walls is less than a kilometer. Caiyun looked up, and unsurprisingly found that the top was also blocked by a stone wall, so that she already had a preliminary understanding of where she was.

Caiyun suddenly felt some wetness under his feet at this moment, and he could clearly feel that there was a stream of water passing through his feet, and there was a ** ripple. Caiyun then looked down with the wonderful sense of touch under his feet, and was greeted by a small flowing river, only a few feet wide, but it was endless. The water is turbulent, revealing a sense of life. It seems to give this damp, dark, and uninhabited space a magical vitality, making it instantly different, no longer just an ordinary underground world.

"Cortana, we should be in a cave now, with a river at our feet, and it should be the flow of the river that you can control with the water longitudinal technique. Caiyun said to Marina.

"Yes, we can get out of this cave as long as we follow the course of this river. Marina said firmly.

Caiyun's advice to Marlena has always been obedient, and the two of them walk together in the direction of the river's flow. The two of them knew that they didn't use the Sky Magic, because they needed to carefully observe every corner of the space so as not to miss any clues about the dragon mound. For them, only by moving slowly can they accurately remember all the details of the surrounding scene.

After about a hundred zhang of progress, Caiyun and Marina suddenly felt that the space in the cave seemed to have become much larger. Next, the further you go, the more open the space becomes, and after walking dozens of zhang, the distance between the stone walls on the left and right sides of less than one zhang has been unconsciously widened to three zhang away, which is very amazing.

The two of them easily spotted a hole not far ahead, which was apparently the end of the narrow cave. They carefully observed all the scenes around them along the way, feeling every fluctuation of spiritual power in this space, but they could not find anything abnormal.

Caiyun and Marlena knew it wasn't them

Where you should stay for a long time, you can't feel the breath of the dragon god in the cave, and there are no visions worth exploring. Both of them had a vague premonition that the moment they left the cave, a new world would emerge before their eyes.

The two of them walked briskly, and soon came to the entrance of the cave. They resolutely took a brave step forward, not a trace of fear of the outside world, but filled with boundless curiosity.

The moment they walked out of the cave, the scene in front of them suddenly underwent a change-like change, and the field of vision became extremely wide in an instant, which seemed to make the hearts of the two seem as vast as the sea at this moment.

From the narrow cave to this vast expanse of the world, it was only a step away, and a feeling of seeing the moon rose in Caiyun and Marina's hearts at the same time, and this should be the place where their exploration began.

"Wow, I didn't expect this underground space to be so vast that you can't see the edge at all, it seems that our task this time is much more difficult than we imagined. ”

Although there seemed to be a little complaint in his tone, there was no trace of chagrin on Caiyun's face, only endless excitement and joy.

"Caiyun, if you look carefully ahead, you should be able to see the scene I told you. ”

Marina's voice was tinged with excitement, and although this was the second time she had seen that spectacle, she still couldn't hold back the heartfelt amazement in her heart.

Caiyun looked ahead, and at the end of the small river at her feet, she saw the mottled but solemn city wall standing tall. Although she had already learned about it from Marina's mouth, she was still deeply shocked by the sight in her eyes, her heart kept beating faster, her blood was constantly warming, and she could feel the call from ancient times from the depths of her soul, encouraging her to explore an unknown long past, uncovering the most mysterious corner of history.

"Cortana, this wall seems odd. Not just because it's underground, but also because there's a faint breath emanating from its surroundings. ”

"You think so, too? You are actually more knowledgeable than I am, and I wonder if you can tell where this breath is coming from?" asked Marina earnestly.

"We're too far away from the city walls now, and that aura is so thin here that I can't tell, but I'm sure it has nothing to do with the dragon god. It seems that we will only have a chance to recognize the belonging of this ruin when we enter the ancient city. ”

The two nodded to each other, then took a step and walked straight in the direction of the city wall.

North Ju Luzhou, northern snow field.

Above the vast snow, two figures are marching towards the direction of the snow-capped mountains.

Walking in front is a girl in a simple black dress, her facial features are flawless, and the seven-colored light in her bright eyes flows quietly, which is beautiful and breathtaking.

Closely behind the girl was a young man in a purple robe, with a handsome face, even compared to the woman, it can be described as graceful. A pair of eyes that contain the light of wisdom are also different, and the pupils are an extremely rare dark purple color.