"What ......"

The bishop looked at the explosion below, and for a moment lost his mind. By the time they flew down to check, the small opening in the barrier had been closed, the city gate had been closed again, and the kingdom army was in shambles, and I don't know how many charred corpses lay under the shocking pit.

He didn't even understand what was going on with the chariots that were coming out of the city.

A car full of explosives? But there was no one on it, who was driving it? How did they detonate the explosives?

However, at this time, they didn't have time to think about those issues. Judging from their actions just now, it is clear that the Black Nightmare Army intends to fight them to the end, and it is likely that there are still a large number of traps waiting for them in the city. Therefore, Grant quickly commanded the soldiers below to retreat a few dozen meters to prevent the city gate from opening and rushing out of something strange.

"Wait. Grant repeated the order, "When the fleet comes, we'll launch a general attack on Koster!"

So, the kingdom army outside the city calmed down and waited patiently for the opportunity. And the city has just been quieted down again, and the city wall is even directly empty, and there is not even a single figure guarding it.

This scene is a bit weird, but after the explosion just now, the church does not dare to act rashly.

Half an hour later......

Finally, with the howling sea breeze, a fleet of more than a dozen warships slowly sailed over. They were soon lined up outside the docks south of Kost, and cannon after cannon was pushed onto the deck. In the dim moonlight, the cross on the flag fluttered in the wind.

"Ready...... Fire!"

Grant had endured it for too long, and when all the Holy Light cannons were in place, he raised his hand high in the air, and the sound amplified by the magic reverberated through the night sky like thunder.

In the next second, sporadic artillery fire rose from all directions, like a back-flowing fountain, converging towards Koster in the center. There was already a commotion in the city of Koster, and a large number of people took to the streets, looking at the sky uneasily...... The Nightmare still didn't make a move.

There were no people on the walls at all, and most importantly, the priests flying around still didn't find Benjamin's shadow.

Where did they hide?

The Bishop frowned, and before he could think about it, he saw countless cannonballs of beautiful holy light bombarding the rune defense array! With another loud bang, the holy light burst out, setting off the night as if it were day. The violent fluctuations of mana spread out, forcing the surrounding priests to fly far away.

Then, a series of subtle sounds, similar to cracking glass, reached everyone's ears.

All the sounds converged together, and in the end, it turned into an unusually crisp - ding!

Grant's expression perked up suddenly.

"Charge the whole army!"

The light gradually dissipated, revealing Kost within. And now, the entire barrier has been wiped out, except for the closed gates, the city is naked, the walls are empty, and there is nothing to hinder them.

As a result, the royal army rushed directly up, and the fleet also landed at the pier. Grant and a large group of priests eagerly flew into the city, searching for traces of the Black Nightmare Army.

They start to feel that something is wrong.

"Where are the Black Nightmares?"

The Captain of the Kingdom drove in, and the priests flew straight into the heart of Koster without any resistance. What's more, the camp in the city is empty, and there is no one in sight, and the ordnance and grain storage has long been emptied, and there is not a grain of food left.

Seeing this, the bishop chuckled in his heart. Grant didn't say a word, and turned his head and flew straight to the city hall.

The door of the town hall was blasted open with a blast of holy light, and the inside was empty, and there were not even a few murals left. Everything that was a little more valuable was emptied. And the vault below the town hall...... What is the situation inside, do you still need to talk about it?

Grant's face became extremely gloomy at this moment.

"The Nightmare soldiers have all fled?"

There were no soldiers in the city, and the kingdom army was rampant. Therefore, they immediately arrested a group of citizens and probed their memories. Most people don't know anything about it, only from the memories of a few people, they come to this result -

As early as two hours before the arrival of the Kingdom Army, the Black Nightmare Army packed up their things and secretly left by boat from the docks.

The moment they learned of the results, everyone in the church was shocked.

"This ...... If they had run away earlier, who would have maintained the rune defense array? And the explosive cart that had just opened the door and rushed out, they had run away, who would control those things?" the bishop immediately questioned with cold sweat oozing from his forehead.

But in the memories of those people, several of them watched this scene with their own eyes...... That's true, yes. ”

The bishop was speechless.

Oh, yes...... A person's memory can be wrong, but after comparing the memories of several people, it is not found, that is, there is absolutely no problem.

But they still think it's ridiculous.

Koster was quickly captured by the Kingdom Army and re-established as the territory of the Church, but the night was far from over. A team of priests flew straight out to sea, trying to search for the retreat path of the Black Nightmares. And the others also freed up their hands and began to arrest people on a large scale, wanting to investigate the truth of the matter as quickly as possible.

And in the end, from the memories of a very small number of people, they found that almost all the soldiers they had seen on the city walls before were mages in disguise.

"What does that mean?"

This was incredible. A group of mages pretended to be soldiers on the city walls to confuse them, while the real soldiers had already fled by boat...... What the hell is the Dark Nightmare trying to do?

“...... Not good. Grant pondered for a moment, then suddenly waved his hand and hurriedly ordered, "Hurry up! seal the whole city! Those mages haven't left yet, and that person, they are probably still hiding in the city!"

The soldiers were stunned when they heard this, but they also reacted immediately and hurriedly began to seal the city.

The bishop also understood everything at that moment.

"They...... They're playing tricks on us!" he immediately looked angry, "Rune Defenses, Dynamite Carts, Wall Guards...... It was all done by that demon with those mages. They wanted to buy time for the large army of the Black Nightmare Army to retreat, and they even used this little trick!"

"Quick! Search the whole city. Grant also grimaced, "Since they want to protect those soldiers, they ...... You have to pay the price!"

So, before the night could bear fruit, countless soldiers were sent out and penetrated into every corner of Koster in a large area. They searched from house to house, sparing no single hidden space, searching for traces of the mages at all costs.

And at the same time.

"Whew...... Finally got out of there. This drain stinks, isn't it?"

Further south of Koster Pier, under the rough waters, a large hole was suddenly carved out of the rock face. Then, one figure after another, protected by the barrier of the water element, came out of the opening. If you count them carefully, there are hundreds of them.

- While countless people above were looking for them, the mages of the Black Nightmare Army dug straight into the sea through the sewers.

"Don't complain, let's go!" Benjamin floated at the front, waving back, "After a long time, they will surely realize what is going on." We can't stay here too long. ”

The mages nodded as well.

So, they followed the current and quickly retreated. No one knew that a group of mages under the surface of the sea had left Koster at this moment, slowly drifting into the distance.