Modification.

A bright system panel was hovering in front of Arther when he called for it. There were many loading bars showing the data such as the water level of the tank, electricity being used and charged, fuel being used, etc. Arther checked on these things and moved to the modification panel. From the supermarket, he had stored some metal tools which can be converted into raw materials and used, but this might not be enough.

Collecting things manually every time was not possible hence Arther was trying to find a way. He also wanted to increase the defense of the MCV before entering the deeper parts of the forest along with its attacking power.

But the automatic collector was his first priority. When this came to his mind the modification list started changing and most of the things disappeared from it, after shuffling for some time few things appeared on the list. All these things were what Arther was in need of. The first was a robotic arm that can be controlled with thoughts or a joystick to pick up heavy things outside the MCV directly from inside and store them in the storage. But it had many restrictions such as the size and weight of the materials that can be stored.

The second option was a conveyer belt that can be folded and retracted inside the MCV, it had the option of sorting and storing things, this option also modified the storage. But the things needed to be placed on the conveyer for it to work. A secondary upgrade will give this conveyer a mechanical arm that can do this work automatically and further upgrade also added options such as crushing of metals. But for now, this was not a suitable option.

So Arther scrolled down, further down were many fancy options that required a lot of high-quality materials, such as an automatic storage beam that can be connected to dimensional storage.

As he kept scrolling many options were displayed and Arther took a liking to many of this, if not for the restriction of materials he might have selected a few of them. But for now, he had to find something more practically useful, after searching for a long time he came across something he needed. This option was a fluid extractor. As suggested it can extract fluids, it can only be used to collect metals, this extractor can convert the metals in a certain area around the MCV into liquid form and absorb it inside the MCV body, Arther has selected this option on the basis of the further upgrade. On the further level, it had many luxuries uses such as separate storage to store the liquid metal, he can use this stored metal at any time such as increasing the thickness of the MCB body walls for better protection, it also had the option of mixing and creating new metals with different properties.

Along with this he also selected the robotic arm to collect any non-metallic things or some other uses. As soon as he selected these options the tools and metals inside the storage started to melt into the MCV. The modification of the MCV was a bit magical as it took no time and there were no changes from outside. Even the robotic arm was hidden inside and will be displayed only when being used.

After this was done Arther didn't hurry using them, he thought of the defense of the MCV. A new window appeared in front of him, on the screen displayed the defense level of the MCV, currently, it was -7, this time he didn't select an option from the list instead just selected the upgrade level option. As soon as he selected the upgrade level option many materials from the storage disappeared, he didn't stop until most of the materials in the storage were used up and the level reached -4. With this, he felt a bit more secure.

Now he had to think of the weapon. The forests were not as safe as they seemed, though in the beginning there might not be any beast and evolved animals there were some undead animals waking up from fossils. To fight against them Arther had stored the guns and ammunition but along with this the MCV also needed an attack method. But now he didn't have much material remaining. Firstly he repaired the front collision column that was broken yesterday night, and added some sharp edges and pointed thorns on it. This combined with the MCV weight and inertia can be used as a weapon. After that, he opened the information panel which contained the information Arther has stored in the system from the WorldNet, where he searched for some ideas and then created a blueprint of a weapon.

This weapon was mounted above the MCV, it can be manually operated from the bunker. It was a ballista. It was similar to a crossbow, just bigger and more destructive. It can be used against a bigger target and the materials used were also modified steel and other metals. From the supermarket one of the best things Arther had looted was the jewelry, it was of gold, silver, and platinum. Platinum was of the least quantity not even enough to make an arrowhead. But now these metals were mixed along with some other metals and were used in the ballista strings and the spearheads used.

Arther wanted to create two of this ballista but due to the shortage of materials, he was able to make only one. After the design was prepared with the help of the information from the system he selected to create it.

When he did this, there was a small noise that attracted everyone's attention. Under his parent's and Nanny's parents ' surprised eyes many different parts of the ballista were created out of the walls of the MCV on the roof, and they automatically assembled together slowly forming the ballista. When the ballista was formed it was already loaded with a pointed Javelin. Under the sunlight, the metallic body of the ballista gave an oppressive feeling while the sharp pointed edges of the javelin with golden color.

Arther's father was the first to react as he had a wide grin on his face, he knew this was Arther's doing and felt relieved and happy about his son's abilities. His hands were already itching to use that monster on the roof. Due to the noise made while creating the weapon Nanny and Jessy was also woken up. When they came out of the room Arther was also done with all his preparation, at the same time the water tank was also filled up and their father's also stored the pump and pipe and came inside. Seeing his father's excited expression Arther knew what he was thinking.