The stone mountain where Zhang Fei camp is located is about seven or eight hundred meters high, surrounded by cliffs. Only the top of the mountain is lush and flat like a round table table.

And the passage up the mountain, as the Yamen said, only a small path can pass through.

Li Qieyou took out a single telescope from his arms, opened it and looked at the top of the mountain. If he really saw a faint figure flashing on the top of the mountain.

Needless to say, those must be "disappeared" colleagues.

Li forgets to worry to these staff members to pour is good living admiration, incredibly so decisive.

After the siege of Jiulong County failed, they retreated directly before the arrival of the army, and they walked so simply that all the five tribes ran to Zhang Fei camp to avoid the pursuit of the Tang army.

In this terrain, even if the Tang army was well equipped, it would be very difficult to capture the Zhang Fei camp.

One man is in charge of the pass, and ten thousand people can't open it. It describes the terrain in front of us.

Not to mention that there are thousands of strong Liao people and nearly 10000 Liao women and children on the top of the mountain. In this terrain, as long as the Liao people are not stupid and send more than 100 archers, it is enough to block the whole passage up the mountain.

Even if the soldiers of the Tang Dynasty had armor and shield, they could not rush through the narrow path of hundreds of meters and attack the staff in front of the arrow rain.

Li forgot to worry. The more he saw it, the more frightened he became.

This kind of terrain, even if he has explosives in his hand, seems to have no effect.

No matter how strong a soldier is, he can't throw the explosive pack up more than 100 meters.

Don't mention these seven or eight kilos of explosives. Even if Li forgets to hang up and get the grenade out, no one can throw the grenade up hundreds of meters?

Li forgets worry in the telescope, the more he observes, the colder his heart is.

Moreover, the Yamen who led the way said that there was still water on the top of the mountain of Zhang Feiying camp, and he could not die from being trapped.

Moreover, the staff certainly didn't move here in a hurry. If there are 3000 mu on the top of the mountain, many fields can be reclaimed, and they can be self-sufficient in a short time.

If the troops of the Datang government can't attack this flying camp for a while and a half, they can only withdraw their troops.

When Li forgets sorrow to hold the telescope to observe, Gao Shilian is very curious about the telescope in his hand.

Although the telescope has been available in Datang for nearly two years, Li forgets his worries and gives it to Li Er.

However, because Datang has no glass, the telescope is made by manual grinding with colorless and transparent crystal, and the output is very low.

Nowadays, only the senior generals of the forbidden army in Chang'an city can distribute telescopes.

Therefore, even Gao Shilian, who is actually in power in Yizhou, has not seen the novelty of telescope.

He saw Li forget to worry about taking this metal tube and constantly looking at the opposite side. For a moment of curiosity, he spoke and asked.

"Ziyou, what is this in your hand?"

Li Qieyou looked at the telescope in his hand in amazement. He couldn't help laughing and said, "Gao Gong, this object is called a telescope. It's a gadget I ordered people to make. It can magnify people or objects in the distance for observation."

"Oh? That's interesting. I wonder if Ziyou can lend me a look?"

Li Qieyou naturally wouldn't refuse. He smiled and handed Gao Shilian the telescope in his hand. He also gave Gao Shilian a hand to guide him how to use it.

"Hiss... It's really amazing! I can actually see the figure of the staff on the top of the mountain!" Gao Shilian was surprised to take a breath after learning to use a telescope.

Gao Shilian, a big man, is like a child who gets a novel toy. He won't let go with a telescope.

This made Li forget his worries. He thought that the old man wouldn't bite gold like Xuecheng and give him Liu Bei to borrow Jingzhou. Can he borrow it without returning it?

Sure enough, after Gao Shilian finally saw enough, he easily put the telescope into his arms, with an innocent expression.

Li Qieyou rolled his eyes silently. The old man is very skillful!

Gao Shilian's act of carrying things in his arms made Li forget his worries and think of his doctor friends in future generations.

The difference is that his doctor friend, Shun is his pen

Whether it's a signing pen, ball point pen or pen, as long as he dares to give it to his doctor friend, when he runs out, his next move must be to put the pen into his pocket.

The action is incomparably skillful and natural, without any stagnation and contradiction, as if the pen was born to belong to him.

Li forgot to worry about Gao Shilian's behavior of "Shun" his telescope and finally decided to put up with it.

Who makes the old man Li Er's wife and uncle, the eldest grandson queen and the eldest grandson Wuji's close uncle? He is two generations taller than Li forgetful, and can't afford to be provoked.

It's just a telescope. Just take it as a filial gift for your "younger generation".

Gao Shilian carefully observed the terrain of Zhang Feiying, and then found all the Duwei and Xiaowei of the government soldiers to discuss how to attack.

Everyone has no good idea about the special terrain of Zhang Feiying,

There was no better way around. After the Duwei and Xiaowei of the government soldiers combined, they decided to attack first.

Because the mountain path is narrow, two people can walk side by side at most, so the troops involved in the attack can not invest too much.

Duwei and Xiaowei carefully selected more than 100 of the most powerful soldiers from 2500 soldiers, all dressed in bright armor and armed with heavy shields, ready to attack.

In the early Tang Dynasty, the combat effectiveness of the government soldiers was quite strong.

If these more than 100 soldiers fight against the Liao people on the flat ground, they will not be afraid even if there are five or six hundred Liao people opposite.

But now, limited by the terrain, I can only wrap myself in an iron shell to see if I can withstand the arrow rain of my colleagues.

After some preparation, the Tang army sounded the war drum, and more than 100 fully armed government soldiers began to attack Zhang Fei camp. Behind them, they also followed hundreds of government soldiers ready to support at any time.

As long as the front troops can open a gap, the rear troops will immediately take advantage of the situation and take the mountain entrenched by this staff at one fell swoop.

After the troops set out, Gao Shilian took out the telescope again from his arms and stared at every move on the mountain. Li Qieyou was also a little nervous. He asked Niu Wu for another pair of binoculars and followed Gao Shilian to observe the movement on the mountain.

But I saw the soldiers attacking the mountain, holding a heavy shield in their hands, carefully guarding and walking slowly to the top of the mountain. Hundreds of people climbed to a height of 500 or 600 meters in one breath, and no one in the office was in trouble.

Those bureaucrats seemed not to notice the Tang army's offensive at the foot of the mountain.

Even Li forget worry and Gao Shilian can't see the figure of bureaucrats on the top of the mountain in the telescope.

Just as the government soldiers turned a pass and prepared to blast through the last hundreds of meters, they heard a burst of copper drums and horns on the top of the mountain.

Then, hundreds of arrows attacked the Tang army from the dense forest on the top of the mountain