Chang'an City, Xingqing Palace.

Yang Guozhong, who was discussing important matters with Emperor Li Longji together with Wei Jiansu, heard the thunder coming from far and near, and couldn't help but turn his head to look out the window. But I saw that there was no sun outside the window, it was a little dark, and the wind was very strong, and the flowers and trees in the garden of the palace danced with the wind blowing around.

Li Longji stopped talking, and he felt a little bad in his heart, and he motioned to Gao Lishi, who was silent, and walked to the window with him.

Affected by the gloomy weather, Yang Guozhong and Wei Jiansu, who felt a little inexplicably uncomfortable like Li Longji, got up with the emperor and walked to the window.

"It's going to rain heavily!" Li Longji looked at the gloomy sky outside the window, the dark clouds that kept rolling with the strong wind, and said with emotion, "I don't know if it's raining in Tongguan!"

"The rain must be coming from the east!" Yang Guozhong looked at the cloudy southeast direction, and muttered, "Tongguan should be raining, it may be raining a lot!"

"It must be raining in Tongguan!" Li Longji followed Yang Guozhong and sighed, "If it rains in Tongguan, this rain will be very heavy, and this battle is not easy to fight!"

Looking at the increasingly dark sky, Yang Guozhong thought for a moment, turned his head to look at Li Longji, whose face was a little gloomy, and said, "Your Majesty, the minister thinks it's a good thing that it rains in Tongguan!" If it rains heavily, the rebels' attack will definitely be delayed, and it is taboo to storm the city in the rain, which is very beneficial to my Tongguan defenders, God really helps me, I hope this rain will last as long as possible, and it is best to go tomorrow!"

Li Longji turned his head slightly, glanced at Yang Guozhong, who was full of confidence, and stopped talking.

Wei Jiansu, who was standing on the side, saw the emperor's demeanor, hesitated for a moment, but still said cautiously: "Your Majesty, the minister thinks that if it rains heavily in Tongguan, this is not necessarily a good thing!"

"Why did Wei Xianggong say that?" Yang Guozhong was a little stunned, and looked at Wei Jiansu in a daze.

Li Longji turned around with his hands behind his back, looked at Yang Guozhong and said: "Guozhong, what Wei Aiqing said should be right, if it rains heavily in Tongguan, it is likely to cause trouble to the progress of the war!"

"Your Majesty, the minister is puzzled!" Yang Guozhong still didn't quite understand, looked at Li Longji suspiciously, and then looked at Wei Jiansu, who nodded vigorously and echoed the emperor's words, "Your Majesty, the minister feels that it is raining heavily, and the rebels will definitely delay the attack on Tongguan City, so that we can buy time for the arrival of my follow-up reinforcements!" As long as General Chen's 60,000 horses and horses all arrive at Tongguan, Tongguan will be worry-free! According to the current situation, Dou Hua and Zhang Yan's 8,000 men and horses can arrive at Tongguan City around dark, and General Chen's follow-up of more than 50,000 men and horses can also arrive at Tongguan in the middle of the night or before dawn! If this heavy rain continues until dark, then the rebels will probably not have a chance to attack the city today, and will not be able to do so until tomorrow. Tomorrow, my tens of thousands of troops have arrived in Tongguan! The minister thinks like this, so he thinks that this is God helping me Datang!"

Li Longji did not answer Yang Guozhong's question, but signaled Wei Jiansu, who was still hesitant, to say.

Seeing the emperor's gesture and Yang Guozhong's doubts, Wei Jiansu hesitated for a moment, but still said his thoughts: "Your Majesty, Yang Xianggong, my Tongguan defenders rely on the Xiongguan Pass to defend the dangerous pass, as far as the minister knows, in the past half a year, Ge Shuhan has been able to hold Tongguan without losing, mainly relying on the powerful lethality of arrows!" The rebels can't deploy a large number of troops and horses under the city, whether it is the old Tongguan City or the new Tongguan City, and the defenders on my Tongguan City can concentrate on attacking small-scale rebel sieges, even if the rebels continue to attack the city, they can also use arrows to effectively kill the enemy, which is also the main reason why Tongguan has consumed countless arrows in the past six months!"

"But the lethality of the arrows in the rain has dropped significantly, and if the rebels are not afraid of difficulties, do not care about losses, and brave the rain to attack the city, then the difficulty of our army's defense will increase a lot! What's more, there are only more than 10,000 defenders in the old and new Tongguan cities, and the follow-up reinforcements are still on the way, and there are about 150,000 rebels attacking the city. If the power of the arrow is lost, just by the sergeant's killing, our Tongguan defenders will be at a disadvantage, and there will definitely be danger! Even heavy rain will collapse the dilapidated Tongguan city wall, making it easier for rebels to enter the city! Therefore, the minister felt that the rain was very much, but not heaven's help, and it would have an even more adverse effect on our army!"

"What Wei Aiqing said is reasonable!" Li Longji thought about the same as Wei Jiansu, and after hearing Wei Jiansu say these reasons, he immediately nodded and praised, and then said to Yang Guozhong, who was still trustworthy: "Guozhong, I think the same way, I have personally led the troops, and I know the hard work of fighting in stormy days, so I believe that if the rebels are attacking the city now, the officers and soldiers defending the city will definitely be very difficult, after all, there are too many rebels!"

Seeing that the emperor agreed with his statement, Wei Jiansu immediately followed up after Li Longji finished saying a few words of emotion: "Your Majesty, the minister also feels that the heavy rain will cause great trouble to the march of my follow-up reinforcements, the sergeant marches in the wind and rain, the speed will definitely not be very fast, if the rain is very long, it will definitely delay the arrival of the reinforcements, if the rebels take advantage of the heavy rain to continue to attack, it will be very unfavorable to our Tongguan defenders!"

Wei Jiansu's last few words touched the string in Yang Guozhong's heart, and made him worry immediately, if it was true that the reinforcements delayed their trip due to heavy rain and could not arrive at Tongguan in time, the danger of Tongguan would increase a few points, and he immediately saluted Li Longji and said: "Your Majesty, the minister hopes that Your Majesty will send another order to General Chen, as well as Dou Hua and Zhang Yan, so that they cannot delay their trip due to the rain, and must brave the rain to rush forward to reach Tongguan as soon as possible, so as not to lose Tongguan!"

"Hmm! It makes sense!" Li Longji immediately nodded, turned to Gao Lishi who was following behind him, and said: "Lux, I will immediately pass on my will, asking Chen Xuanli, Dou Hua, and Zhang to gradually speed up their march, no matter how heavy the wind and rain are, they will not stop, Dou Hua and Zhang Yanbu must arrive at Tongguan before dark, and there must be no mistakes, otherwise they will be severely punished!"

"Yes, Your Majesty!" Gao Lishi answered, and after making a salute, he turned around and left, conveyed Li Longji's will, and strictly ordered it to be delivered to Chen Xuanli, Dou Hua, and Zhang Jian as quickly as possible.

With a loud "click...... sound, a bright lightning bolt split the gloomy sky in half, startling the three people in the hall, Yang Guozhong and Wei Jiansu hurriedly went over to support Li Longji.

"Your Majesty, it's going to rain heavily, you can go inside and rest!" Yang Guozhong said softly.

"Well, let's go inside!" Li Longji nodded and motioned for Yang Guozhong and Wei Jiansu to help him in.

Yang Guozhong, who helped Li Longji into the hall, whispered: "Your Majesty, as long as Chen Xuanli's men and horses can reach Tongguan as soon as possible, don't worry about the rebels' hundreds of thousands of horses!" The 30,000 horses behind are almost finished, and the ministers have already strictly ordered them to set off before dark, and strive to reach Tongguan the night after tomorrow!"

"I hope Tongguan is worry-free!" Li Longji sighed softly and stopped talking.

Another flash of lightning slashed rapidly, and earth-shattering thunder followed, and a continuous sound of "click-......" sounded in the courtyard, which was the sound of thick raindrops falling to the ground.

As the thunder and lightning became more and more dense, the dark clouds in the sky became more and more intense, and finally when the wind stopped, the downpour fell from the sky!