When Cao Jian heard Li Yanzhao's order, he immediately gathered more than 40 horsemen in his team, each put on a crude raincoat made of oilcloth, and then went to the stable to lead the horses, then got on the horse and left the camp, heading downstream.

The uneasiness that rose in Li Yanzhao's heart made it impossible for him to go back to rest. So he went to fetch his raincoat, and then climbed up to the watchtower, and tried to catch with his senses any sign of impending danger in the dark night when it was raining heavily and he couldn't reach his fingers. The night of the black hole around him seemed to devour everything, which made the uneasiness in his heart even stronger.

Cao Jian's department has already left the camp to reconnoiter downstream, and it is believed that the results will come soon. However, Li Yanzhao looked at the empty camp inside the camp wall at this time, and felt that the danger was approaching step by step.

At this time, the battalion sergeants had already taken refuge in the camp tents to avoid the rain. Only a few arrow towers and watchtowers were still standing. However, in such a dark night where they can't see their fingers, the warning role they can play is extremely limited.

Cao Jian led his troops out of the camp, and then braved the rain to advance five miles downstream, and his soldiers were divided into two according to the order, each covering the advance alternately. In the darkness of the night, he could only vaguely see the scene twenty or thirty paces ahead. The continuous muffled sound of raindrops hitting the oilcloth raincoat made Cao Jian's heart even more irritable.

The rain flowed down the simple oilcloth raincoats worn by the riders, and the hands holding the reins of the horses outside the raincoats were also felt from time to time. About an hour or so before leaving, Cao Jian and the others were about thirty miles away from the camp.

Everyone paused for a moment, and the group led by Cao Jianqin immediately dismounted and went out to find out if there were any suspicious traces in the surrounding secluded places. If an enemy sentry is carrying out a reconnaissance mission on the north bank, then a distance of thirty or fifty miles must be the most active range of their activities.

One group wandered around on horseback, while the other went into the mountains or fields on either side, searching back and forth among knee-deep weeds. Cao Jian's 20 or so people searched all the places around where people could be hidden, and they did not see any signs of activity of people other than their own horsemen.

I don't know if it was washed by the rain or something else. Cao Jian, who used to often find some traces of Xiongnu sentry activities such as horse dung, burning leftover firewood, and discarded sheep bones in the vicinity, found nothing this time.

After searching for a long time, Cao Jian, who did not find a trace, was faintly uneasy in his heart. He led the horse and led a group of soldiers under his command to the front of a deep old forest, and then Cao Jian stretched out his head to look at this old forest.

"Team Cao, do you want to go in and search?" Cao Jian had a horse beside him, and when he saw this, he asked.

Cao Jian was about to reply, but a thunderbolt rang out in the sky, accompanied by dazzling lightning, which frightened the horses of the riders and screamed. Cao Jian listened to the muffled sound of the raindrops falling on the raincoat, so he shook his head and said to the chief beside him: "Don't search, the Hun sentry is definitely not here, let's continue to reconnoiter downstream." ”

When the chief heard this, he bowed down to receive the order, and then continued to mount his horse with his own soldiers, and then went downstream.

In the old forest, a Hun cavalryman with high eyebrows and a broad nose and leather armor heard that the horse's hooves of the detectives had gone far away, so he raised his head, and then got up lightly and cautiously went to the edge of the forest to check it. When it was certain that the Liangzhou army sentinels had gone far, they walked quickly back to the places where they had stayed.

In the forest, countless Hun horsemen heard the signal he sent out to lift the guard, and they came out of the bushes and rotten leaves in the body, and then, from the depths of the forest, a Hun horseman with a horse came out, and the horses were all good cages, and they were covered with hooves in steps. These ghostly figures in the darkness quickly gathered together.

"Commander! Those Liangzhou sentinels have gone downstream, should we intercept them? The cavalryman who had just sent out the warning was tightening the bow and knife at his waist, and then asked the commander on the side in a nonsense language.

"It doesn't have to be this way! By the time they discover our army crossing the river downstream, I'm afraid their camp will have already been breached! The commander wiped a handful of the rain that ran down his cheeks, and then said with some indistinction: "Let the brethren mount, and in half an hour I will attack the enemy camp!" ”

Cao Jian and the others rode their horses in a hurry, and after another hour or so, they arrived at a slightly narrow river beach. Looking downstream, the waves of the river are spectacular. The more than 40 horsemen reined in their horses under Cao Jian's gestures, and then Cao Jian rode his horse forward a few times, and walked out of the area blocked by a sparse forest and shrubs, and the river in front of him was suddenly clear.

Cao Jian dismounted, then climbed a large rock high on the river bank and looked out towards the river. But I faintly saw dozens of black shadows on the surface of the river, slowly coming towards the north bank where everyone was.

Cao Jian stared at the dark shadows on the river as if he had lost his mind, and he tried his best to make his eyes clearer, so that he could see through the layers of fog shrouded in the dark night, and see clearly what the dark shadows on the river surface and the opposite bank were.

After about two quarters of an hour, it was not until the dark shadows on the river surface approached the river beach where he was that Cao Jian faintly heard some nonsense shouting through the rain curtain.

Cao Jianjian, who was lurking in the grass, was startled. He didn't care much, so he quickly got up, and then quickly rushed to his horse, got on the horse, and took his subordinates and galloped back in the direction of the camp.

The sound of horses' hooves rushing away reached the ears of the Hun generals on the river bank through the layers of rain curtains. The Hun general, who had just led the horse off the boat, heard the sound of the horse's hooves, and his face changed drastically. He didn't care much, and immediately called more than 100 Hun cavalrymen who led the horses off the boat, and immediately got on their horses and chased in the direction where the sound of horses' hooves came from in the distance.

Cao Jian lay on horseback, and the rain continued to flow down his cheeks, neck, and even the collar of his coat through the thin raincoat that could not be covered. The icy rain was frantically stimulating his nerves at the moment, making him extremely conscious. He didn't dare to relax for a moment, but desperately whipped the horse's buttocks with a horsewhip, in order to quickly report the situation to Li Yanzhao.

What Cao Jian didn't know was that almost at the same time, nearly a thousand heavily armed Hun cavalry soldiers drilled out of the dense old forest where they had just given up searching. These phantoms of a rainy night are about to become a sharp knife, piercing the weakness of the Liangzhou army and opening a door to victory for the Zhao army!