6 Chapter 6 Open the Scientific Research Center

Sure enough, before the situation turned better to the side of the human race, there were other changes in the sky.

The fighter who had gradually grasped the situation on the scene was attacked before it could react.

A group of creatures with transparent wings approached the hovering fighter planes in mid-air and launched an air attack.

"How did they come here?"

Jack rubbed his forehead. He had an intuition that something might happen, so he stared at the fighter planes in the sky.

The accident had happened, but he didn't know how it happened.

These creatures were Bumblebees that were 3 times larger than a fighter plane.

Jack saw it clearly with the drone. Just now, the Bumblebees used the huge needles in their stomachs to pierce the high-speed rotating wings of the helicopter.

As a result, what was destroyed was not the bumblebee, but the helicopter was directly split in half!

The helicopters lost control one after another and fell quickly from the sky to the ground.

Below them, there were still many survivors, leaving only 1/3 of John Hancock.

"Oh no."

Jack exclaimed. He quickly reacted and controlled the drone to leave the scene.

He couldn't imagine the explosion of more than a dozen fighter planes at the same time, but it could blow up any building directly.

After the drone retreated, Jack couldn't see the specific scene.

But in an instant, he felt the whole castle shake violently, and the empty bottle of water on the table beside him directly fell to the ground.

Jack waited quietly for five minutes. When he thought it was completely quiet, he controlled the drone to return to the scene.

Fortunately, the speed of the drone could reach 500 kilometers per hour. It successfully escaped before the explosion.

When the building John Hancock appeared in front of Jack again, it was completely a deserted ruin.

In less than half an hour, this prosperous area had become a desolate place.

Jack didn't want to believe it, but he could only believe his eyes now.

Mutants on the ground and the Bumblebees in the sky left.

They were going to attack somewhere else!

Jack looked at his watch and found that it was 8:45.

The drone had only gone out for 45 minutes.

A city was destroyed.

Mutants and Bumblebees, who had temporarily lost their targets were very likely to find his fortress and launch an attack!

The more Jack thought about it, the more nervous he became.

He controlled the drone back to his fortress and then checked it, again and again, to see if there was anything wrong with it.

According to the inspection of the system, Jack's drone was unharmed.

Jack breathed a sigh of relief.

"System, what can I do now?"

After the drone was sent back, Jack walked around the fortress. After hesitating for a long time, he decided to ask the system.

To his surprise, he received an answer from the system within a few seconds.

"Dear master, now you have several different upgrade plans: 1. Strengthen the defense of the castle. 2. Enhance the defense level of the castle and unlock the scientific research center."

The system was very considerate and gave two different plans to improve the comprehensive ability of the castle in a short time.

Facing these two choices, Jack didn't even hesitate and excluded the first plan.

Now he only had 1000 points left, but he didn't have 2000 points to upgrade "Special metal wall" and "Add the self-repairing function of the wall".

Jack was a man who pursued perfection. Since the system of the basement was started, he must develop all his facilities perfectly.

"System, how to enhance the defense level of the castle?" Jack chose the second plan.

The system didn't answer him this time, but directly gave the comprehensive properties of the current castle.

"Apocalypse Refuge Castle"

"Owner: Jack Dawson"

"Area: 200 square meters"

"Defense Level: Lv.1"

"Reserve of Materials: Normal"

"System Hint: The layout of this fortress is reasonable. It has an average space area and good defensive materials, but it lacks enough defensive means. At present, it can resist the simple disaster."

After some simple strengthening, Jack hadn't opened the property data of the castle. Now that it had completed a simple upgrade.

According to this property, it was enough to defend the first disaster of doomsday.

But Jack didn't intend to only defend!

He was furious after he saw so many human beings killed by the creatures ruthlessly.

He needed to fight!

"The defensive level can be improved not only by strengthening the defensive function of the fortress but also by expanding the size of the space in the fortress."

"Currently, it is suggested to expand the area by 100 square meters and increase the floor by 1 meter. It will cost 400 survival points."

"Defensive level of the fortress after being strengthened: Lv. 2"

"New equipment can be unlocked: scientific research center"

Reinforce the fortress according to the system recommendation: Yes/No

Hearing the words "Scientific Research Center", Jack chose "Yes" without hesitation.

"The area and height of the refuge castle have been expanded successfully!"

"Survival Points: -400."

The next second, the size of the castle expanded a lot after Jack chose yes.

The castle covered an area of 300 square meters, giving Jack a sense of luxury.

At the same time, the fortress wall on the ground grew a lot.

A new room appeared. The room was tightly closed, waiting for Jack to open it.

Undoubtedly, it was the scientific research center.

Jack didn't think too much and went to the new room.

There was no knob to open the door, nor was a fingerprint or password board on the newly appeared door. It looked like a bare metal plate.

"The room has been made, but how can I open the door?"

Jack stopped in front of the door like a fool.