"Alright, Nia, Rodney's trip is a foregone conclusion, and no matter what I will face in the future, I am confident enough to solve it! You can rest assured! ”

Since Xia Duo said this, Nia also respected Xia Duo's choice, but after the two separated, she couldn't help but contact her teacher to find out more details about the matter.

It's just that she sent multiple messages in a row, but she didn't get a reply from the teacher, and Niya couldn't help but worry.

On the other side, Xia Duo, who knew that he would soon go to the Rodney Territory, blocked all outside information and devoted himself to the production of the spell book.

Despite the princess's assurances that there would be no danger in this mission, Xia Duo had always been reluctant to put his own safety on the assurances of others.

Even if some of his preparatory measures were ultimately useless, he would not change this idea.

In fact, the spell book is not useless, even if it is not used on Rodney's trip this time, it will still be used in the future.

And from Archmage Gretta's description, Xia Duo did not find a time limit, that is-

Theoretically, he could have said yes first, and then wait for him to become a Grand Arcanist before going to the appointment.

Although the actual situation could not have allowed him to operate like this, Xia Duo had already made up his mind that he would not leave the Tower of Time for half a step if he did not complete the spell book and make sufficient preparations!

……

Tower of Time, Chador's Abode, Spell Laboratory.

Xia Duo frowned and linked the Mithril component corresponding to the last set of element units to the magic net, and before he could make the final measurement, he immediately put away the spell book, and lay down on the bed to face himself with a [deep sleep].

During this "retreat", Shado discovered another use of mind magic, which was to force himself to fall asleep, without waiting or guidance, and to fall asleep in one shot, with great results.

He didn't know if anyone else had done the same, but it felt really good that he did, a bit like taking sleeping pills to help him sleep on earth, and it was very time-saving.

It only takes less than four hours for a [deep sleep] to make him alive again, and the effect is comparable to the meditation of an elf.

The only difference between the elf meditation and the elf is probably the inability to think while sleeping, and if he could, then Xia Duo would no longer have to envy the elves.

After jotting down the feelings he felt after waking up, Xia Duo returned to the spell lab to prepare for a few simple tests on the spell book.

The spellbook is theoretically quite complete, and the test is mainly to check for possible deviations from the spell design on paper to the actual spell book.

Of course, the possibility of deviation is very small, and it is more of a sense of anticipation of Xia Duo's spell book.

……

Taking out the spell book from the carry-on space, Xia Duo couldn't help frowning, the color was not good-looking!

Although Xia Duo is not a good-looking party, this kind of pure gold and dark blue that can be seen at a glance makes him feel very awkward, and he always feels that the equipment without painting is a little out of the flow.

Fortunately, these are some unimportant details, which do not affect the actual use of the spell book, and the most important thing at the moment is to conduct actual measurements.

The first step of the actual test is, of course, the so-called "homology", which links the spell book to itself, and is also a process of entering permissions, without this step, the spell book cannot be used at all, unless it is really a piece of the head.

The "boot setup" is not complicated, Xia Duo carefully controls a number of free magic net strings extending from the fixed port of the spell book, and couples and corrects them with the magic net strings condensed on the spell book according to certain rules to determine the final permission.

After that, some of the "threads" that are drawn out are connected to themselves, which completes the double binding from hardware to software.

In this way, even if this spell book is obtained by someone else, it is impossible for the other party to unlock it through normal channels, unless it is like Xia Duo who cracked the Felder spell book before, it can be solved by bridging and replacing it step by step, and slowly analyzing.

This is unavoidable, just like the decompilation of software on the earth, from the lowest atoms and electrons to crack, no software can resist.

Of course, due to the new permission system designed by Xia Duo, the difficulty of cracking his spell book will far exceed that of Felder's spell book, and he will almost set a limit step by step, at least without a few years or more than ten years of work, don't think about cracking it.

It's just that that's what he can do, if the spell books are taken away by others, even if others can't crack them for a lifetime, then what's the point for Xia Duo himself!

Seriously, if it weren't for the idea that he would rather die than make the enemy comfortable, he wouldn't have set up any encryption measures and permission system in the spell book at all, which completely reduced the energy efficiency of the spell book.

……

After completing the "boot setup", Xia Duo skillfully activated the spell book, and saw that the original magic aura of the spell book suddenly flourished, and then quickly returned to its original state.

At this time, the spell book itself flew up from Xia Duo's hand deftly, and with Xia Duo's conscious command, the spell book flew up and down around him, quite swift and sensitive.

After that, Xia Duo once again activated the portable mode that came with the spell book, and the aura suddenly flourished, and then quickly returned to its original state, and the spell book shrank into a mini form less than half the size of a palm, and flew towards the silver belt around Xia Duo's waist.

The book was linked to a special buckle on the strap and hung securely, like an ordinary charm, but the color was a little mismatched.

Xia Duo walked back and forth in the spell laboratory for a few steps, and did not feel a noticeable sense of falling.

- [Invisible]!

The spell book immediately disappeared from Xia Duo's waist, but along with the disappearance of a belt around his waist, Xia Duo couldn't help but shake his head again and again, seemingly disappointed.

Although the body of this spell book has become smaller, its own invisible field has not become smaller because of this, so the flaws are exposed.

"Something went wrong!"

Xia Duo patted his head and regretted it, he should have thought that the spell would not change by the change of the form of the object.

Generally speaking, the structural characteristics of a spell have determined the energy level and consumption of the spell in advance, and whether it is made into a spell generator the size of a basketball or a ring, it will not change the effect of the spell.

The only limitation is whether the Mithril component of the small device can withstand that much energy flowing.

Of course, Xia Duo had no problem with this, he tried to choose the highest Mithril found in the ruins of the Lost Lock, and he had not used it in his previous experiments.

It's the best Mithril he's ever found.

However, he ignored the effect of the change in form.

Sure enough, it is not enough just to demonstrate the feasibility and test, and next time if there are conditions, it is best to carry out physical trial production, and it is best to have a 1 or 2 version first, and then make a look.

……