Threat from the Sea

"We will build a wall around here. I will be taking care of the woods. Go! We don't have too much time! I predict the monster will arrive tonight!"

I ordered the soldiers around to build a wall between us and the sea. While it was not much, it was good enough to hold the monster away for a moment. I release a massive amount of mana and grow a forest in a blink of an eye.

When a small forest appears, I create a movement with my hand, and suddenly a wind blade shoots from my hand and cuts down the tree in front of me. I raise my hand, and suddenly, the wood begins to float in the air and slowly begins to be placed on the ground near the soldier.

They then begin to cut the tree to create the shape they want. The three engineers I bring are the ones leading the soldier on the carpenter duty.

"Isaac, there is another monster movement on our left. four hundred meters away from us."

"The number?"

"More than three thousand."

"Damn."

"What do you want me to do?"

I thought for a minute. I guess it is time to show my true power. At first, I don't want to show my people the creature I can summon using the Pale Gate Rune, but it looks like we don't have any more options.

I take a deep breath, and suddenly the Pale Gate Rune on my forehead begins to glow. A second later, six massive creatures appear in front of me.

A massive nine-tailed fox, a gigantic silver eagle with two pairs of wings, A stone golem was wielding an enormous stone pillar, a golden eagle with lightning wing, an angel-like knight wielding a sword of light, and lastly, a dark knight holding a dual sword of darkness.

"Your enemy is to the west! Four hundred meters away from us. Kill them all, show no mercy."

After I say that, all my summon, except Yuka, the nine-tailed fox, release a roar before they are gone. A few minutes later, an explosion happens in the distance, and I know they already fight the monster.

"You do nothing for now. Wait, not nothing. I was hoping you could continue to scout the area. I have a feeling that monsters are not the only ones coming toward us. Do you know the source of these monsters?"

"I don't know. However, I have a suspicion the monster are spawning in the dungeon."

"Dungeon?"

"Yes."

I guess that made sense. A dungeon is a place where monsters spawn at a faster rate. Usually, monsters spawn in a specific area with a certain number. Usually, they did not exceed the number of three hundred each spawning cycle.

One cycle of spawn usually takes two to three months before it can be spawned once again.

The only thing that makes them spawn faster is the spike of Chaotic energy being released from the birth of S-rank energy. The rate of the spawn will be increased to a thousand per hour and slowly decreasing.

Yesterday was the most challenging part of the monster wave because the spawner will continue to spawn more and more monsters that day.

On the other hand, a dungeon is a palace where monsters spawn from a crystal of condensed Chaotic energy. This crystal will continue to spawn monsters every day. Sometimes, it spawns ten monsters, and sometimes it will generate one hundred monsters.

What makes the dungeon and natural spawner different is that the dungeon will not release its monster until it meets a specific number. When they do this, it will be called the monster outbreak.

Usually, the number ranges from one thousand to one hundred thousand.

However, unlike the natural spawner, someone can destroy the dungeon. As long as someone successfully goes to the lowest floor of the dungeon and destroys the crystal, it will destroy the dungeon.

With the four thousand monsters on the way, it is very likely a dungeon is the culprit of this sudden monster attack. However, I cannot go and investigate the dungeon just yet. It will be suicidal to explore the dungeon now with the chaotic energy at its highest.

~Nine hour later~

It was a dungeon. My summon already fights the monster to our west and holds them there, but some monsters still manage to escape my summon.

With the wall around us is done, we now have a secure area for the incoming wave. The monster coming from the dungeon will spawn three thousand monsters every two hours. Lucky for us, the monster is not too powerful as they only range from C to B monster, but mostly it was a B-rank monster.

My summon, on the other hand, can be compared to an A- monster. So they can handle this wave of monster just fine. However, some of the monsters still slip from their eyes and charge toward us even with that.

My summon can handle them and then take a rest for an hour before they get ready to fight once again. Each of the fights will come back to me where I heal each of them. Lucina also helped me heal my summon using her Cyclone Rune.

Now that the wall is done, I order my men to rest. Eat, take a bath or even sleep. I take a massive quantity of food from my pocket dimension and distribute it around. I also provide them with clean water for them to drink or use to take a bath.

I'm fortunate for having magic in me. Aguamenti spell is a lifesaver.

"Isaac, the trap has been set."

"Good. Where do you think we should place other traps?"

"The beach is a good place to put down some traps. However, I don't know what kind of trap we should place down."

"Hmm… Bring me some stone. The stone needs to be our fist's size, no bigger than that but can be smaller than our fist but not much. Gather them here. The more, the better."

"What do you want to do with it?"

"Rune trap. I will carve some rune on the stone and place them around the beach. The rune will be activated when they step on it, and it will create an explosion."

"Very well."

Lucina then looks at her unit and orders them to gather as many stones as they can the size of their fist. After ordering her unit, she walks toward me and says.

"What about the monster coming from our west?"

"I will let my summon handle them. I will even summon the Gate Guardian to help them."

"How much will you summon the Gate Guardian?"

"Ten for now. Ten should be enough. Five to help the other summons, and the rest of them will help us fight the monster coming from the sea."

"I see."

"Yes. I will leave the vanguard to you, Lucina."

"Leave it to me."

I nod at her and look at the sea with a worried expression.

I don't know how long we can hold this monster wave. We already lose many northern men defending their land.

I hope the reinforcement from the south will come soon.