As a result, it took a long time for Reiner to explain the ins and outs to Claire, but fortunately, she also knew Elise herself, so there were no strange associations.

Soon, her attention was drawn to the small skirt brought by Elise, two hand-sewn dresses, one in a dark tone, with plenty of space under the arms and skirt to show the wearer's skin, and the dress was decorated with a little starlight, forming an intricate constellation of twelve signs, circling like the night sky.

The other is brighter in color, decorated with primrose, and the petals falling on the pale white background show a full girlish feeling, compared to the dull and serious dresses of ordinary nobles, this skirt is more suitable for lively and lovely girls.

Elise has obviously put a lot of thought into these two dresses, both in terms of design and craftsmanship, they are first-class, and they are definitely worth a lot.

Dana looked at the skirt with some envy, and then at Claire, and suddenly had a feeling of losing.

Elise didn't stay to have dinner with Reiner and the others, he had been away from his shop for a long time, and was about to leave for Toorondo on the same day, before leaving, he left an address for Dana, and since Dana still needed to study at Crescent Academy, they decided to communicate with each other about the guidance of costume design.

The commotion subsided, but Reiner's research on isotopes stalled.

The materials needed for his experiments had to be procured from various half-planes, and it took weeks to transport them.

The vast majority of half-planes have no direct connection with the main plane, and people need to cross the stargate to jump from the main plane to the half-plane, and these passages that cannot be explained by current magical theories cannot be artificially created, and can only be found by searching the entire half-plane.

The discovery time of the first half-plane is no longer known, and it is now generally believed that the Griffonor half-plane is the first half-plane to be colonized and developed in recorded history, and the stargate leading to this plane is located in the territory of the Midland Federation, and because of this, that area has been a rich place since ancient times, and people have used the resources from the two worlds to develop themselves and establish a brilliant civilization empire.

After that, the stargates leading to different half-planes were gradually discovered, and mankind entered the era of great transcendence, and history records that in just a hundred years, at least a hundred half-planes were discovered, some of these half-planes were directly connected to the main plane, and some were found in other half-planes, and the territory of civilization expanded dozens of times in an instant.

During that time, the humans of the main plane, led by ancient mages, built a vast magical empire, as if the sea of stars was within reach.

However, then, humanity encountered an extremely powerful enemy, which the mages called the "Alien Beast", a monster with a body composition that was completely different from that of the main plane and the creatures of each half-plane, and the number of them plundered all their resources at each half-plane, and all that was left was the desolate wreckage.

When the beast first appeared, it destroyed a fertile half-plane Sauron, slaughtering several mid-level mages, causing the mages to forcibly close the six star gates leading to Sauron, which are non-renewable and an extremely valuable resource, but for the safety of other planes, the mages can only do so.

As a result, the alien beast is also known as the Sauron xenomorph and is feared by the people.

At the same time, within the mage, the conflict between the mystical mage and the bloodline mage has also intensified because of the appearance of the Sauron xenomorph, and various factions are mixed, some people believe that the whole world should start a state of war and take the initiative to find the lair of the Sauron xenomorph and destroy it completely, while others believe that the Sauron xenomorph is just a locust in the plane and does not need to make a fuss, and some people are extremely pessimistic, believing that only by escaping the current star field can they survive.

Since that mass appearance, the Sauron xenos have disappeared, only occasionally appearing in certain planes on the edge of civilization, causing suspicion throughout the Magic Empire.

This strife lasted for thousands of years, and eventually, Herman. Lord Pragues created a modern magical system, put an end to strife, and shattered the old Magic Empire, which had long been in turmoil, and many of its kingdoms and federations became independent.

Although it only takes a short moment to pass through the stargate from one half-plane to another, the goods from one half-plane to another stargate can only rely on horse-drawn carriages or new steam trains to travel slowly.

The minerals and materials purchased by Reiner also come from different half-planes, and are transported by conventional means at an extremely slow speed.

"If only there was an otherworldly courier."

Reiner pondered that since the materials had not yet arrived, he naturally had no way to start his experiment, and there was nothing special to pay attention to recently, so he put his previous idea into practice.

It wasn't a bikini or a maid's uniform, of course, but a roughly bound book on the table.

On the cover, Reiner's notes read "Ian Gray's Complete Textbook".

There is no doubt that this is a tutorial book.

Open the book, there is an analysis of the knowledge points of the general textbook, as well as the corresponding exercises, and at the end of each chapter, there are test questions that comprehensively consider the level of knowledge, which can be said to be a very modern reference book.

This is a concise and refined manual that Reiner synthesizes some similar textbooks in the past, whether it is for test-taking education or simply as a study guide, it has excellent results, which has been confirmed by the students of Crescent Academy.

In addition, at Reiner's hand, there are two books.

"Ten Years of Magic Test" and "Five Years of Test and Three Years of Simulation".

As the name suggests, one of them is a collection of past ten years of magic test questions, and the other is a collection of five years of real questions and three years of mock questions, including questions and answers, all of which can be obtained from the Magic Association, but no one has thought of sorting them out before.

Reiner added some new knowledge points to the book, and at the same time systematically differentiated these topics according to the textbook subjects, so as to compile these two sets of reference books.

Through the experience of taking the magic exam in Toruño, Reiner learned that although the magic test can determine the future direction of an apprentice in this world, there are too few strategies and references for the exam, and in Reiner's words, the test-taking education in this world is still in its infancy.

Although he didn't think that a good test score meant a higher level of magic, since there was an apprentice like Dana who was troubled by his studies, then these materials should have some meaning.

Of course, the most important thing is that it is always right that these materials can be used to make a lot of money.