According to the display inside the control crystal, the fourth layer of the Witch Tower is where the core witch array is located.

There are 5 floors above ground and 2 floors underground, so there are 7 floors in total.

The two underground floors are the energy room and the material warehouse, which is also the common layout of most witch towers.

The first floor above ground is the apprentice's quarters, the witchcraft hall, the library, the academic hall and the public dining room.

On the second floor above ground, there is a witchcraft garden, a breeding room, a cultivation room, a small comprehensive laboratory, and a witchcraft practice ground.

On the third floor above ground, there is a sealing room, a library room, a golem factory, an alchemy laboratory, and a scroll making room.

The 4th floor above ground is the bedroom, study, reception room, and the area where the core wizard is located.

On the 5th floor, there is a conveyor room, a private laboratory and a workshop.

This layout was also initially completed at Grim's request, and most of the witchcraft facilities were only empty shelves, and they had to be continuously invested and replenished in order for them to function perfectly.

Under normal circumstances, the activity area of wizard apprentices is only 1 or 2 floors above ground, and those prospective wizards and advanced apprentices can borrow certain facilities on the 3rd floor after applying. For floors 4 and above, only wizards can enter, and they must be trusted wizards affiliated with the main tower. Wizards from outside can only temporarily stay in the 3rd floor of the dwelling.

Since the entire witch tower has not been expanded, the activity area is not too large, but it is no problem to maintain more than a hundred wizards and apprentices to live in it.

Grim walked into the wide and bright central control hall, the smooth white translucent stone floor, the walls faintly revealed a rich elemental atmosphere, and a huge strange crystal was inlaid in the central area of the floor witch array. And at the core of this huge crystal's crystal cluster, a strange rune that loads and floats is extinguishing, constantly releasing strange witchcraft energy from it.

Grim leaned down and took a closer look, mainly using the chip to quickly scan the internal structure and composition of the huge crystal. It's weird, and you get nothing!

"Drop, unknown energy crystals have been found, no matching material type can be found in the database, and no signs of artificial synthesis have been found, and it is preliminarily speculated to be extraterritorial substance ......"

Extraterritorial substances?

This also means that this crystal is not a specialty of the wizarding world, nor is it an alienation crystallized by high-level wizards who have transformed it with witchcraft, but ...... A special crystal that loots from the Outer Plane or the depths of the Star Sea!

Grim took out the control crystal that the silver-robed wizard had given him, and found that it was made of the same material as the giant crystal. And when the runes in the huge crystal flashed, the small crystal in his hand would also vibrate and rhythm with it, just like two crystals breathing in sync.

As instructed by the silver-robed wizard, Grim placed the small crystal in a groove above the giant crystal, then slit his palm and pressed the bloody hand against the crystal.

"Drop, the data connection channel is detected, is the connection established?"

"Build!"

As the spiritual power and the huge crystal were connected, Grim felt that his perceptual world suddenly became incomparably huge, and the spiritual power extended to every corner of the Witch Tower almost instantly. And in his mental space, a huge light screen suddenly popped out, densely packed with numerous operation instructions.

And the most urgent directive at the moment is:

Activate the Witch Tower!

Unlike activating the Tower, activating the Tower means that Grim has the highest level of access to the entire Tower. Unless he undergoes a special witchcraft ritual and voluntarily erases the soul imprint left in the crystal, he will always have the highest control of the tower.

"Chips, have you found any safety hazards?"

"Drop, the control crystal has been preliminarily tested, and no backdoor procedures and security traps have been found...... A more comprehensive check will be performed once the tower is activated. It is recommended that the main body activate the Witch Tower immediately!"

As Grim struck down the command to activate the Witch Tower, the small Witch Tower trembled slightly, and in the energy room on the second basement floor, the elemental altar suddenly lit up with a trace of elemental light with a divine taste.

A fist-sized black hole slowly opened up above the Elemental Altar, and wisps of dazzling mist floated from it. As soon as they floated out of the black hole, they were dragged and precipitated by the elemental pool below. It didn't take half an hour for a rich aura of magical energy to hit the face, and the dazzling mist gathered more and more, surrounding the bottom of the elemental pool, making it gradually become a little wet.

Soon, a pool of clear and translucent, but extremely thick and viscous water came out at the bottom of the pool!

This is not clear water extracted from the Water Elemental Realm, but a liquid magic element from the surrounding void. These magical energies were originally gaseous, but under the precipitation and compression of the elemental pool, their unit concentration was too large, and it took on this liquid form.

If the energy of the Witch Tower is operated for a longer period of time, these liquid magic elements will be further compressed by the elemental pool, and a solid magic crystallization will appear. That's the hardest traded currency in the wizarding world!

With the activation of the energy room, with the convergence of the magic elements in the element pool, streams of magical energy were extracted and began to be slowly injected into the Witch Tower system. From the 2nd underground floor to the 1st underground floor, and then to the entire outer wall of the Witch Tower, all the places where the rune witch array extended began to glow with energy fluorescence.

The three Silver Alliance wizards and Gargamel, standing half a mile outside the tower, silently watched as a trace of fluorescence lit up from the base of the tower, and then gradually extended to every corner of the tower.

This witch tower, which was still low and dark red just now, is already shining like a beautiful fire coral at this moment, showing its beauty and magic to everyone!

"Come in, and welcome to my wizard's tower!"

Grim's voice suddenly came from the air with a bit of joy and excitement, and as soon as his voice fell, the door of the Witch Tower, which had been closed just now, opened silently again.

Grim met and talked to the three Silver Alliance wizards again in the living room on the third floor of the tower, and Gargamel was granted some permission by Grimm, so he couldn't help but go around and get acquainted with the tower.

"Lord Grim, if you don't have any new needs, we're going to take our leave!"

It can be seen that this place is sparsely populated and lacks resources, and the three pampered Silver Alliance wizards can't help but want to leave once they complete their tasks, and they don't want to stay here for a second.

"No hurry!" Grim hurriedly said, "The basic framework of this witch tower has been erected, but there are still many witchcraft facilities inside that cannot be activated, so I want to know your bank's quotation in this regard?"

Wizard Eugene immediately took out a piece of parchment for Grim and briefly gave him a basic idea of the basic price of most of the witchcraft facilities.

Teleportation Circle: 100,000 magic crystals.

Exploration room: 70,000 magic crystals.

Advanced Sorcery Training Ground: 80,000 magic crystals.

Bondage room: (small) 4000 magic crystals, (medium) 20,000 magic crystals, (large) 50,000 magic crystals.

Sealing Room: 30,000 Magic Crystals.

Purification Pool: 20,000 Magic Crystals.

Large-scale comprehensive alchemy laboratory: 130,000 magic crystals. (with full set of equipment and tools)

Golem Factory: 40,000 Magic Crystals. (Can only craft or repair Wizard Golem Builds)

Scroll Fabrication Room: 3000 Magic Shards. (All Tools Included)

Enchantment Laboratory: 7000 Magic Shards.

Alchemy Servant: (Wizard Grade) 20,000 Magic Crystals, (Apprentice Level) 800 Magic Crystals.

Transforming Witch Beasts: (Wizard Level) 1, 60,000 Magic Crystals, (Apprentice Level) 600 Magic Crystals.

Witchcraft Garden Servants: Flower Essence (200 Magic Crystals), Leprechaun (170 Magic Crystals) ......

Witch Tower Slave (Power Type): Minotaur (20 Crystals), Boar Man (8 Crystals), Ogre (25 Crystals), Half-Dragonman (40 Crystals......

Witch Tower Slave (Special Type): Halfling Gourmet (300 Crystals), Underground Dwarf Blacksmith (120 Crystals), Grass Elves (700 Crystals for Women, 600 Crystals for Men), Siren Apprentice (1700 Crystals/Crystals......

Although the parchment is not large, it contains a lot of content, and many of them are necessary for a functioning witch tower. It's just that seeing the base price marked on the back of each item, Grim can't help but have a headache.

If he is a veteran wizard who has lived for a hundred years, he must have some capital in his hands. But he wasn't, but an ordinary wizard who came out to work hard with his bare hands, and even the hat of a new wizard on his head had just been taken off.

As for savings...... The resources and magic crystals obtained from the last dimensional war have also been spent on Alice's fateful battle. He is now on hand and it is estimated that he can only squeeze out 3-40,000 magic crystals, and this is obviously not enough to make the wizard tower complete, only enough to maintain its basic operation.

Of course, Grim is not without valuable goods in his hands. As long as the last Void Stone is willing to take it out, all the problems are solved.

But...... He really can't bear it!

So Grim and Wizard Eugene discussed for a long time, and then paid out of his own pocket to build a small flame altar in the hall on the first floor, and then added some tools and equipment to the alchemy laboratory, the golem factory, the scroll making room and other facilities, and bought some magic seeds for the witchcraft garden.

In addition to this infrastructure, Grim purchased 2 more halfling gourmets, 2 dwarven blacksmiths, and 2 elves.

There is no way, he and Gargamel will need to stay here for a long time in the future, and it is impossible to go out hunting every day to make a living, so it is only right to go out and purchase a large number of ingredients and daily necessities, and then hand them over to these alien slaves to take care of!

As for the Witch Tower Guards, there are 11 manticores for the time being.

When the Flame Altar was built by the Silver Alliance wizards, Grim immediately stuck the discarded Flame Lord's Staff on it. In this way, every day he was able to summon 5 fire elementals from the Flame Altar as elemental minions of the Witch Tower.

Over time, this labyrinthine underground passage can be occupied by the fire elemental, which can greatly improve the safety of the Witch Tower. And he can also have some more free slaves, why not do it!