Heavy rains for several days not only caused the river to swell, but also flooded the low-lying areas. The camp of the new annex army and the people also retained ankle-length water, although the waterproof preparations were made in advance, and the weight of grain and grass was not lost, but the inconvenience caused by the water accumulation was obvious.

The camp has become a mess, with leaves, broken wood, grass stalks and even dung and other debris floating around, and clean drinking water is a big problem.

The new annexed troops and civilians lived in the camp soaked in water, and it was obvious that they could not eat and drink normally, and even rest and sleep became a luxury.

The cavalry directly under the secret fire and the camp of the Mongol Han army did not have a big impact due to the high terrain, but the ground inside and outside the camp became muddy under the trampling of people and horses, and they would fall down if they were not careful.

It is said that the heavy rain had the greatest impact on the Mongolian army, which damaged the earthen wall in front of Hengyuan Fort, and destroyed the hard-working offensive tunnel.

Under the authority of the Jiagu Longgu Belt, the people finally dug the tunnel under the fortress wall, and only needed to dig for a few more days to dig down the city wall or dig into the fortress.

Unexpectedly, people are not as good as heaven, although the Mongolian army built a high fence at the entrance of the tunnel, but it could not stop the heavy rain for days.

The earthen walls and enclosures were washed away by the rain, first softening and then crumbling. Then the rapids formed by the rain poured into the tunnels, and the tunnels filled with rainwater also began to collapse one by one, making the efforts of the Mongols for more than half a month come to naught.

The heavy rain severely frustrated the Mongol army's siege plan, but it did not affect the defenders of Yokohara Fort, and did not even cause inconvenience in life.

When designing and building the fort, Ouyang Xuan asked the construction company to build not only housing, but also bathing rooms and toilets and other living facilities according to the standards that had been adhered to for a long time, as well as warehouses and drinking cellars for storing grain and meat.

In order to ensure the health of the defenders, Ouyang Xuan even sent people to regularly bring fresh wild vegetables to the defenders. As for the operational aspect, it has no impact.

At the beginning of the design, in order to prevent heavy rain and flash floods, the fortress at the mountain pass was even abandoned, and the current site was chosen as a high plateau.

While forts in mountain passes are more effective at stopping enemy infiltration, they are also vulnerable to mudslides and boulders rolling down from the mountain.

Although the rainfall was extremely heavy this time, it was all discharged to the neighboring Wenjing River, and there was no water in the fort at all, and even in the ditch in front of the fort.

As for the core military equipment such as artillery and ammunition, in addition to being protected by the top of the city wall and special moisture-proof warehouses, it has been carefully maintained by the defenders and has not been affected in the slightest.

On the contrary, the river swelled under the continuous heavy rain, making the river wider and making the movement of the Perak army more like a fish in water.

At the first glance after the rain, while the new annex army and the people were busy draining the camp from the water, a group of Mongol cavalry brought the order of the secret fire—to immediately transfer the grain to the mountain east of the cavalry camp.

This order made the general in charge of the reattachment of the army quite puzzled, and he couldn't help but ask a few more questions. The Mongolian officer who took the lead was drinking in the camp, but he was arranged to convey the order, and he was really annoyed in his heart, and the road was muddy and he walked in a hurry, and the horse slipped and fell into the mud, and when he was full of anger and had nowhere to vent, seeing that this lowly cannon fodder officer dared to talk more, he gave him a horse whip with a slash on his face, and the unlucky general of the new annexed army rolled in the muddy water.

Within the Mongol army, the pure Mongols were naturally the first class, the Semu people were the second, the Khitan and other Mongol Han armies were the third, and the new annexed army surrendered by the Song army was the fourth class, which was at the bottom of the chain of contempt.

In the eyes of the Mongol officers who gave the order, although he was only a centurion, he was a personal soldier in the fire of the secret one, much more noble than the generals of the new annexed army, and naturally had the right to whip them at will.

Although the Mongols, including the secret Huoli and him, understood that since these new annexed armies would rebel against the Southern Song Dynasty, of course they would also rebel against the Mongol army.

It was just arrogance that made him believe that the Mongols were about to conquer the Southern Song Dynasty, and these new annexed troops did not dare to betray the Mongol army at all, because there was only a dead end in doing so.

Anyone with a discerning eye knows that it is a stupid decision to transfer grain in stagnant water, on the one hand, the handling efficiency is extremely low, and on the other hand, it is inevitable that it will be wet by water during the handling process, resulting in food loss.

As a battle-hardened general, the secret fire would not be unaware of the arbitrariness of this order, in fact, he decided it after careful consideration.

Because he received news from the Mongolian army stationed in Chongqing Fucheng and Sandu Shuimeng respectively, saying that a large number of warships of the Perak army had appeared in the nearby waters, and it seemed that there would be a big move.

Both groups of messengers were covered in mud and looked like they were in a state of utter embarrassment. Two of the messengers from Sandushui had several scars on their bodies, apparently caused by a fall from running in a hurry.

The secret interrogated the messenger and found that the Thunderbolt ships had just stopped in the rain. Such a unified operation was obviously coordinated in advance, which made him feel faintly uneasy, and he remembered the scene when the Perak warships shelled Chengdu.

The same eyes after the rain, the same river swelled, and the same suddenly appeared, which made the secret person suddenly realize in the fire: "Could it be that you want to grab food again?" ”。

This thought made his back sink, and the hairs on his body stood up, and he immediately gave the order to transfer grain.

Although he was confident that the chains could hold off the Thunderbolts, it was always possible to be careful. He was to transport the grain to the mountainside woodlands farther away from the river.

It was five miles away from the Wenjing River, and the artillery on the Perak warships should not be out of reach. The secret one's prediction was correct, though he only partially guessed.

In Ouyang Xuan's plan, it was not only to seize the grain in the secret fire, but also to cut off their grain route.

In fact, under the repeated attacks of the blasting boats, the water barriers and pontoon bridges set up by the Mongolian army in the water could not support them for several days.

Ouyang Xuan let the water army hibernate, waiting for the best time. The secret one predicted the right beginning, but did not guess the ending.

Shortly after his order, twenty ships sailed downstream towards Yokohara Fort and easily broke the Mongol pontoon bridge in the river.

In order to obtain supplies from Qiongzhou, Dayi and other places west of the Wenjing River, the Mongolian army erected pontoon bridges near the river near the grain and grass baggage camp.

It's just that this improvised pontoon bridge has long been crooked under the heavy rain and the surging river, and it was easily broken up by the big boats that came on.

When the boats reached the middle of the river by the grain and hay camp, they stopped. The soldiers and civilians of the new annex who were carrying food turned their heads to look, only to see that a warship in the front began to flash with fire and smoke.

In the blink of an eye, with a loud rumbling sound, the muddy water around the granary was blown in all directions. The sailors who came this time were the Liao Loach Department lurking in Huangjiadang, and there were a lot of ships, but there were only one heavy artillery ship and four light artillery ships.

In fact, only one light gunboat opened fire this time, and only eight solid rounds were fired. The eight shells landed among the Mongol cavalry overseers, knocking down several unlucky ones.

It's just that the power of the solid bullet is really terrifying, and those who are hit and rubbed are either killed or injured, but it also frightens these Mongolian cavalry to flee in a hurry.