Hundreds of years ago, the Central Plains region was invaded by the barbarian Xiongnu on the northern border, and finally completely annihilated the Xiongnu after eight years of war.

And in this glorious victory war against the Xiongnu, there is a city that has to be mentioned, that is, the horsehair pass located in the border mountain range, which is one of the important places that the Xiongnu must pass through to invade the Central Plains, the garrison commander at that time, General Xia, was ordered to lead his subordinates to defend the pass, only 12,000 troops to resist the 50,000 Xiongnu army, and hold on to March to carry down and wait for the arrival of reinforcements, which also benefited from the superb fortification and fortification technology of the Xia family.

With the passage of time, the ruling dynasty has experienced the collapse and replacement of generation after generation, but the reputation of the horsehair pass has not been attenuated by the change of dynasty, and even become more and more brilliant with the efforts of later generations, from the original two mountains separated by the pass to develop into a huge fortress connected by many towns, even after the Tiangang catastrophe, which is close to the destruction of the world, the horsehair pass still stands tall and completes the major responsibility of resisting the monster, so it is the name of the "Iron Horse Fortress" by the contemporary ruler "Kui" emperor himself.

However, the current commander stationed in the Iron Horse Fort is no longer a member of the Xia family, it is rumored that on the day of the Tiangang catastrophe, in order to resist the Warcraft, his descendants all sacrificed their lives for the country, and fighting against the Star Warcraft is not something that ordinary people can easily do, but the people of the Xia family still led the army to fight side by side with the immortal warriors, and made significant contributions on the way to victory.

"That's the story."

As soon as the fan was closed, Feng Linghu stood on the city wall and felt the cool breeze blowing in his face, Feng Shuang looked into the distance and said: "Young Master Linghu is really well-informed, so he understands the allusions of this iron horse fortress. ”

Shangguan You'er: "Langya, it's windy here, please put on a coat so as not to catch a cold." ”

Maple Frost: "Didn't I say I wasn't...... I'm not cold! ”

Feng Linghu smiled: "Haha, it seems that Brother Shuang finally realized that it was useless to defend himself. ”

Fengshuang: "It's really nerve-wracking, where does she come from?" It must not be the Red Maple Gate, and there are still the Divine Sword Sect left in the famous and decent families that use swords on the rivers and lakes, but the light sword she uses is very different from the giant sword, and the clothes she wears are clean and pure white, and she has never seen it, so she doesn't understand ......"

Feng Linghu: "Maybe it's just a folk self-taught immortal cultivation technique like Young Master Ben?" ”

At this time, Shangguan You'er shouted from under the city wall: "Langya, the meal has been cooked, let's come down with friends." ”

Feng Shuang sighed and walked down the stairs slowly, Feng Linghu touched the bricks and tiles on the city wall alone, and said to himself, "Was it a strong castle that couldn't be destroyed last time?" Then we'll have to wait and see this time, hehe. ”

Located on the dry stone cliff north of the Iron Horse Fortress, a pair of twin sisters with the same appearance and body shape are holding a compass to calculate something, the two are the famous "twin stars" in the Star Dou Qiankun, Beidouhe II and Beidouhe III, at this time a young man wearing a rag cloak scorched up the cliff peak with difficulty, tired and lying on the ground gasping for breath.

Beidou River II: "Useless Yuanchen, it's tiring to climb a mountain." ”

Beidou Hesan: "It's good not to hold us back." ”

The guy on the ground was Beidou Yuanchen, spit out a few mouthfuls of dust and shouted angrily: "Is it necessary for you to bring so many things with you when you come out?" It's all on my back! ”

Beidouhe II: "Yuanchen's three-legged cat kung fu." ”

Hokuto River Three: "This is to train you." ”

Beidou Yuanchen: "I haven't heard that working as a coolie can improve your cultivation!" ”

Suddenly, the twins made a "shhhh ”

Beidou Yuanchen was puzzled: "What has changed?" ”

Beidou River II: "The movement of the Earth's axis star." ”

Beidou River Three: "It's no longer in the Valley of the Black Wind." ”

Beidou Yuanchen: "It's unusual, the astrology of the predecessors can't be wrong." ”

Beidou Heji knocked Yuanchen on the forehead and said, "It's because there is an abnormality." ”

Beidou Hesan followed up and knocked again: "That's why they sent us here." ”

Beidou Yuanchen: "Pain! Double the pain! ”

The twins looked into the distance together, where the Iron Horse Fort was located, why did the Axis Star Beast leave its original route and go to a place without aura? No one knows, and now the key is that most of the knights who gathered here to crusade against the Star Beasts went to the location announced by the Star Dou Qiankun, but the Demon Beasts suddenly moved to the crowded Iron Horse Fortress, where the innocent people had not yet learned of the coming, and they had to be notified to take refuge immediately.

However, everyone didn't know that there were already immortal cultivators in the Iron Horse Castle, not only the Red Maple Gate and his party, but also the female hero Tang Ying, one of the four masters of the Tang Gate, was also here, and there was also the little junior sister Tang Qianyan beside him, and the two girls were well disguised as tourists to blend in the crowd.

In the teahouse, Tang Qianyan was puzzled: "Senior sister, why don't we go straight to Black Wind Valley instead of coming to the Iron Horse Fort first?" ”

Tang Ying: "Because I haven't been back for a long time, I came to take a look." ”

Tang Qianyan: "Could it be that Senior Sister has relatives here?" But I heard that Senior Sister, you entered the Tang Sect alone to practice, and now for nearly eighty years, it is impossible for you to have relatives living in the world. ”

Tang Ying: "Girl, you guessed correctly, my senior sister has no relatives and no reason here." ”

Tang Qianyan: "Why is that senior sister...... Ah, I see, hee-hee. ”

Tang Ying: "What do you know again?" ”

Tang Qianyan cocked her slender legs and said proudly: "It must be intentional that someone came here on purpose." ”

Tang Ying smiled at the corner of her mouth and said, "Then what kind of person do you think my crush is?" ”

Tang Qianyan: "This is stumped for me, but my senior sister is strong in martial arts, and the person I like must also be a generation of heroes in the rivers and lakes, right?" ”

At this time, there were ripples in the teacup on the table, and the ground could be clearly shaken, and something strange might happen outside to attract the two girls to go out to find out.