Chapter 705: Multiple Spellcasting, Three-Core Spellbook

After playing with it for a while, Xia Duo restored the Spellbook to its original state. Since the flight function was fixed, he felt almost no pressure while holding it in his hand.

This Spellbook of his was nothing more than a spell-generating device capable of flight, invisibility, and possessing relative sturdiness. The testing of its inherent functions was about done, and its true functionality lay in—

The various spell capabilities brought about by the additionally equipped spell inner pages.

Thinking of this, Xia Duo moved his consciousness, and the Spellbook responded immediately. The cover opened automatically, flipping through the pages with a rustle, and then a bright light flared; a wall composed of invisible force appeared instantly within the Spell Laboratory.

Xia Duo stepped forward and touched the Force Wall, feeling it to be completely devoid of resistance and slippery, as if it had no actual tactile sensation at all, as if it were merely a wall-shaped field that reconstructed inertia and force.

It was indeed a Force Wall, without a doubt!

Soon, as Xia Duo adjusted the intensity of the Suppression Field within the Spell Laboratory, the Force Wall quickly disintegrated and vanished. Afterward, Xia Duo conducted continuous gradient activation on the 【Force Wall】 spell inner page.

This was to test whether the spellbook inner page worked normally under different circle levels of the same spell.

The result was as expected: the Spellbook's operating state was perfect!

This was, of course, not Xia Duo's own merit. In fact, whether it was Fielder's antique Spellbook or "modern" Spellbook designs, this kind of composite element design was used.

That is, one inner page could contain all the elements of multiple circle levels of the same spell, and one only needed to activate the corresponding one when using it.

This could greatly save on the number of spellbook inner pages used, thereby allowing a single Spellbook to encompass more spells.

……

Next, the staggered activation of different spells was also quickly tested by Xia Duo, and likewise, no accidents occurred.

After that was the final item of testing—the simultaneous activation of multiple inner pages!

As a direct manifestation of adopting three Arcane Crystals as the Energy Core and optimizing and adjusting the Central Link Layer, Xia Duo's Spellbook could achieve the simultaneous activation of up to three spell inner pages.

In other words, as long as Xia Duo felt it necessary, he could completely cast three spells at once!

Of course, if the same spell inner page was not added additionally, the three spells could only be three different spells, with no limit on the circle level.

At the same time, as the price for simultaneously activating three spell inner pages, the Spellbook required some extra time to balance the rapid buffering and opposition of energy.

This time was not long, but it did exist.

Therefore, in actual use, one still needed to be cautious.

And if one only activated two spell inner pages simultaneously, as long as it was not continuous activation, there was no need for buffering or opposition at all.

The significance of the three Arcane Crystals lay right here!

By the same token, wanting to activate more spell inner pages simultaneously required more Arcane Cores; they did not necessarily have to be Standard Arcane Crystals, as smaller ones would also work.

However, considering the issue that the Energy Core could not be changed even if he upgraded later, Xia Duo did not adopt the plan of using multiple small Arcane Crystals, but instead used 3 Standard Arcane Crystals directly as the Energy Core.

This way, even if the spell inner pages were upgraded to the 9th Circle in the future, they could still be activated three at a time, whereas an Energy Core of small Arcane Crystals might not necessarily be able to do so.

Like the upper limit of Arcane Energy in Xia Duo's current Arcane Fire, a single casting could only solidify an Arcane Crystal the size of a grain of rice. Even if the Spellbook did not need to consume the Energy Core, as a capacitor-like existence, the upper limit of the Energy Core still restricted the upper limit of the spells.

Additionally, Xia Duo had not yet mastered the ability to directly "remelt and recast" Arcane Crystals. When the Spellbook adopted a multi-energy-core scheme, balance was very important, and using small Arcane Crystals could not guarantee complete consistency.

And if one did not use Arcane Crystals, using a composite simulation core like a Five-Colored Gem could only count as one Energy Core, meaning one could only activate one spell inner page at a time.

Generally, this was enough. According to Niya herself, although her Spellbook used an Arcane Crystal as the Energy Core, she only used one.

Of course, as for the actual situation, Xia Duo had not personally inspected Niya's Spellbook, and he still held reservations about this.

……

——5th Circle 【Short-range Portal】

——3rd Circle 【Mage Armor】

——1st Circle 【Summon Mount】

For the first attempt at multiple inner page activation, Xia Duo's mood was somewhat apprehensive. Although the previous tests all met expectations, there was no guarantee that some weird issue wouldn't pop up here.

Xia Duo had seen quite a few cases on Earth where theoretical arguments passed, and even simulation tests passed, but the manufactured product just couldn't be used.

Although many were the fault of manufacturing processes, Xia Duo actually did not have absolute certainty about his own Spellbook, which was close to being handmade.

Of course, he still had confidence; after all, the fact that no problems were found during the manufacturing process and up to the current testing already indicated that the probability of it being qualified was very high.

Various thoughts flashed through Xia Duo's mind, and before him, almost in an instant, appeared two portals not far apart, resembling a pair of blurry mirrors, as well as a Forest Horse filled with magical radiance.

At the same time, the 【Changxiao Hujia】 sustained by a homologous spell on Xia Duo also produced some fluctuations. Perhaps the effect of the 1st Circle 【Mage Armor】 was too weak, not even enough to produce a significant enhancement to the 【Changxiao Hujia】.

Although the portal and the magic mount quickly disappeared under the effect of the Spell Laboratory's Suppression Field, Xia Duo knew he had succeeded.

No, it should be that he had already succeeded before the manufacturing; now it just counted as the finished product passing quality inspection.

Next, Xia Duo conducted a series of high-intensity tests, such as repeatedly activating the same circle level spell of the same inner page, simulating spellcasting needs under specific scenarios, full inner page testing, and so on.

He only stopped when he was somewhat exhausted. Using a Magic Item did not require much energy; that Xia Duo could test until he was exhausted showed just how high the test intensity was.

And even with such high-intensity use, the Spellbook did not show any abnormalities at all. Xia Duo was very satisfied with this!

It could no longer even be described as just satisfied. After coming out of the Laboratory, he held the Spellbook almost constantly, opening it to take a look every now and then.

This scene was just like when Xia Duo was still on Earth, having just received a favorite electronic product—a bit joyful, a bit smug, and mixed with a tiny bit of unease.

He was terrified that this thing would disappear the moment it left his hand!

For a time, Xia Duo even forgot the reality that a trip to the Rodney Territory was waiting for him outside.

……

However, excitement was ultimately fleeting, and dullness was the norm of life. Just by roughly calculating the cost of the Spellbook, Xia Duo quickly calmed down.

Not counting other costs, the materials alone required nearly 30,000 Gold Coins, of which the Arcane Crystals accounted for almost half, with other Mithril also included.

Fortunately, the Mithril Xia Duo used this time was all picked up by his subjects from the Mythallar Ruins and didn't require spending money; otherwise, he really wouldn't have been able to afford it.

If one added the maker's labor, the consumption of the Alchemy Array, and the consumption from the early experimental tests, selling this Spellbook for 100,000 should be considered very conscientious.

An ordinary High Mage had a monthly income of about 1,000 Gold Coins from normal work, and he would have to save for nearly ten years to be able to afford a boutique Spellbook.

One must know that the net income of the Savile Territory in the past, including the Tower of Time, was only a little over 100,000 a year. For an ordinary High Mage, even counting savings from before reaching the Advanced Rank, 100,000 was not a small amount.

Buying a Spellbook would almost cost half one's life, not to mention that such a boutique Spellbook might not even be available for purchase!

Thinking of this, Xia Duo suddenly felt the Spellbook in his hand become much heavier, and at the same time, he felt some regret for dismantling that Fielder Spellbook.

Of course, if he hadn't dismantled the Fielder Spellbook, his own might not necessarily have been successfully manufactured.