In this way, Yu Tianxiao and Lan Xing'er kept flying forward in this huge cave, sometimes turning around, sometimes in a long straight line. Along the way, both of them kept an eye on the detector's screen in order to find out all the energy fluctuations here.

In this way, the two of them flew to a depth of more than 400 kilometers in one go. After coming to a depth of more than 400 kilometers, they immediately found that there were many sub-caves here, just like the previous big cave. I saw that there are more than 10 large and small caves here, the largest cave height can be more than 600 meters, the width of the hole is more than 300 meters, and the smallest hole height is more than 200 meters, and the width of the hole is less than 100 meters.

Looking at the appearance of so many large and small caves in front of them at once, the two couldn't help but stop immediately, and then Yu Tianxiao couldn't help but smile and said to Lan Xing'er: "Last time, you chose it, and I met those eight indigenous powerhouses, fortunately, the two of us are stronger than them, so we will serve them in one pot, if they are stronger than us, then it will be us who will be served in one pot, even if we are not served in one pot, we will run away in embarrassment." In a word, your choice is neither good nor bad. ”

"Then you've got the choice this time!" Lan Xing'er couldn't help but immediately said with a smile.

"Okay, this time it's up to me to choose, let me take a good look at it." Saying that, Yu Tianxiao began to carefully observe these large and small caves.

I saw Yu Tianxiao observe for a while, think carefully for a while, and then couldn't help but point to the second largest cave next to the main cave and said, "Let's enter this second largest cave." ”

"Sure?" Looking at the second largest cave, Lan Xing'er couldn't help but immediately ask.

"Sure!" Yu Tianxiao nodded and replied.

"I hope your choice will lead us to meet Bao! And it's a treasure! Lan Xing'er chuckled.

"That's for sure! Alright, let's go! Yu Tianxiao also smiled.

Immediately, neither of them spoke again, but swished! Sou! As soon as he turned around, he immediately burrowed into the second largest sub-cave next to the main cave.

As before, both of them flew forward as fast as they could, and the cave had very few curves, almost in a straight line.

Just when they flew forward for a distance of about 200 kilometers. Suddenly, boom! Thundered! There was a sudden sound like an earthquake, and the whole cave trembled and trembled, as if it could collapse at any moment.

After feeling this violent vibration, both of them couldn't help but be shocked in their hearts, and then immediately looked at the screen of the detector. Under this look, Yu Tianxiao couldn't help but suddenly exclaimed: "Ni Mom! Oh my God! This time we really met a treasure! ”

Seeing the display of the detector screen, Lan Xing'er's face couldn't help but change, and then he also exclaimed: "So much!" ”

The reason why the two of them had such a big reaction was because of what was displayed on the detector screen. About eight or nine kilometers away from them, there was a large group of monsters, estimated to have dozens or even hundreds of monsters at the very least, rushing towards them at a rapid speed, only to see that the huge energy fluctuation was almost about to detonate the detector!

At this time, the two couldn't help but glance at each other, and then Yu Tianxiao couldn't help but shout: "Why are you still stunned!" Run for your life! ”

As soon as the words fell, whoosh! Sou! The two of them turned and fled back the way they came, as fast as they could now.

It wasn't long after the two left. See, boom! Thundered! A group of fifty or sixty heads, all fiery red, and all about seven or eight meters tall. The body length was about twenty meters, and the wolf-like monster was running wildly in the direction where Yu Tianxiao and Lan Xing'er had fled, almost filling the entire cave.

I saw that the weakest of these wolf monsters were all Beast King level, and the strongest was Beast King level. Among them, there are as many as twelve beast emperor level, and the rest are all beast king level. It is no exaggeration to say that if they kill Yu Tianxiao and Lan Xing'er. It's like stepping on two little ants.

You know, this is the twelve-headed beast emperor, a large group of beast kings, although Yu Tianxiao and Lan Xing'er are very strong, but the so-called good tiger is hard to beat a group of wolves, if you don't look at anything else, judging from the fact that the previous detector was almost shocked by the energy fluctuations it emitted, this group of guys is by no means what Yu Tianxiao and Lan Xing'er can provoke now.

Goodbye Yu Tianxiao and Lan Xing'er, who fled in front, flew out of this cave almost instantly, and then came to the place where they had set out before. After coming to the starting place, the two didn't dare to make any stops, whoosh! Sou! All of them quickly burrowed into the main cave as soon as they turned.

After entering the main cave, the two of them only flew a distance of about ten kilometers, and then swished! Sou! They got into a rock crevice above the cave wall.

After entering the rock crevice that could accommodate four or five people, Yu Tianxiao and Lan Xing'er couldn't help but immediately hold their breath, not daring to make any more sounds, while their eyes were staring at the detector screen without blinking, observing which direction the group of monsters were going.

Thundered! Thundered! As the minutes passed, the vibration caused by the monster group running became louder and more intense! And as the energy fluctuations displayed by the detector became stronger and stronger, Yu Tianxiao and Lan Xing'er became more and more nervous, and their hearts almost rose to their throats, if they really had an encounter with this group of terrifying monsters, then the two of them would have to be seriously injured and disabled even if they did not die.

In this way, the two of them rested in the crevice of the rock at the top of the cave, waiting! Finally, about three minutes later, boom! With the largest and most violent tremors, in an instant, the vibrations caused by the monster herd running became smaller and smaller, lighter and weaker, until a few minutes later, it completely disappeared into the entire cave.

When the monsters are completely far away and you can't hear the vibration anymore, brush! Brush! Yu Tianxiao and Lan Xing'er flew down to the ground from the crack in the rock at the top of the cave, and then pounced! Thump! Both of them sat on the ground with their butts together.

When both of them sat on the ground, they let out a long breath, as if they were the rest of their lives. After a period of respite, Lan Xing'er couldn't help but immediately smile and said to Yu Tianxiao: "Your choice is really good!" As soon as I entered, I encountered a large group of living treasures! ”

"Living treasure?" Listening to Lan Xing'er's words, Yu Tianxiao immediately asked a little confused.

"Yes! Living treasures, referred to as living treasures! What a pity! We don't have it! Lan Xing'er explained with a smile, with an emotional look on her face.

"Oh! You girl, you are making fun of me, how unreasonable! As soon as the words fell, Yu Tianxiao couldn't help but take Lan Xing'er into his arms, and then opened his mouth and kissed him a few times on the face. After kissing, he continued: "Look at you, I can't bite you!" ”

"Huh! Hehe! Hehe! Looking at Yu Tianxiao's appearance of pretending to be angry, Lan Xing'er couldn't help but laugh immediately.

To be honest, this time there were no other comrades-in-arms to accompany them, and only the two of them came to this strange planet to carry out the mission, and they were really a little uncomfortable, and they always felt a little empty. But fortunately, because they are of the opposite sex and are in a couple's relationship, there are many things that others can't do, but they can do it, such as snuggling up to each other and talking about love, flirting and laughing, hugging and kissing each other, and even having sex once in a while! In this way, the two can completely use the love between each other to offset the coldness, or the psychological pressure caused by the battle.

In this way, after the two of them laughed there for a while, they couldn't help but stop, at this moment, they didn't have the heart to make out further, the group of super powerful monsters just now really frightened them, if they ran a little slower, they might have been eaten by now, or trampled into pulp! It's scary to think about!

After the two calmed down for a while, Yu Tianxiao couldn't help but hug Lan Xing'er and whispered to him: "It seems that my choice here is not as good as yours, so it is up to you to decide how we should act next." ”

"Huh! Now you know how good I am! If I hadn't chosen that cave earlier, would we have been able to get those four Blood Spirit Stones? Although it was a tough battle, we won in the end, so my choice is not bad or bad, but definitely good. Lan Xing'er immediately said proudly.

"Yes, yes, yes! Your choices are all excellent, say, which cave should we go to now? Yu Tianxiao asked as he nodded.

"It's very simple, continue to the main cave, if there is not much danger, then we will fly all the way to the end and see what the deepest part of this main cave will have." Lan Xing'er couldn't help but say immediately.

"Well, in that case, let's continue our march into the depths of this main cave until we reach its end." Yu Tianxiao said immediately.

"Hmm!" Lan Xing'er nodded.

Then the two of them got up at the same time, whoosh! Sou! Turning into two streams of light again, they flew deeper into the main cave. (To be continued......)