Gu Shi chatted with Wendel for the entire afternoon, then had dinner at their house and left.

Wendel asked someone to pass a message to Gu Shi just to confirm whether he had come out safely. After all, it was he who proposed this operation.

Now that he saw that Gu Shi not only returned safely but also gained a lot, Wendel felt relieved.

Gu Shi returned to the Mage Tower as night fell. He did not go to Field with his questions immediately, but went back to his room to take a good shower.

Anyway, he is back, so you can ask these questions anytime.

After staying outside for such a long time, although Gu Shi also paid attention to personal hygiene, he always felt that a thick layer of dust had accumulated on his body, and it was time to wash it thoroughly.

As a result, as soon as Gu Shi opened the door, the north wind blew in his face.

It was obvious that Shufeng was quite dissatisfied with Gu Shi for leaving him alone for such a long time. Gu Shi coaxed him for a long time before he was willing to leave Gu Shi.

Gu Shi rested peacefully for the night. Before he could take the initiative to look for Field, he met him in the lobby early the next morning.

"I'm back. How was the trip?"

From the moment Field stepped into the Mage Tower, he sensed that Gu Shi had returned. Thinking that as a teacher he should care more about his students, he specially came out of the laboratory this morning.

"Good morning, teacher. This time..."

Gu Shi told Field everything that had happened during this period in detail, then took out the black book from the space ring and handed it to him.

Gu Shi didn't think there was anything in this incident that needed to be hidden from Field. Several years had passed since he became Field's student.

During such a long time of getting along, Gu Shi has fully felt Field's care and love for him, and he is also very close to and respectful of this teacher.

Gu Shi often felt a little guilty because of Field's kindness to him.

Compared with Field's attitude towards him, Gu Shi had concealed too many things. After everything was settled, he must apologize to Field sincerely.

Listening to Gu Shi's story, Field was in the mood to fiddle with the materials in his hands at first, but later he listened completely attentively.

Field was very interested in his student's adventure, especially when he heard Gu Shi's description of the special magic circles.

As a noble with a long history, Burns naturally had a lot of knowledge from before the war in his collection, but the several formations that Gu Shi was describing were all things that Field had never seen in the family collection.

Field's interest was completely piqued. He reached out and took the black book from Gu Shi's hand, quickly flipped to the pages that Gu Shi had marked in advance, and began to read carefully.

"Interesting, it's a magic circle I've never seen before." Field's eyes became brighter the more he looked at it. He hadn't seen such a special magic circle for a long time.

He looked up at Gu Shi and asked, "Can you lend me this book temporarily?"

Although Field was Gu Shi's teacher, he had no intention of taking the book away by force based on his identity.

Gu Shi, who had been standing quietly beside Field since he started flipping through the book, nodded immediately. "Of course, Teacher, you can take a look at it."

Gu Shi had already spent a lot of time reading through the entire book, and all the contents that were helpful to him at the moment had already been memorized in his mind, so lending the book to Field now would not have any impact on him.

The book left by Anthony is much thicker than it looks. After all, it is all he has learned in his life. Gu Shi only needs a small part of it at present. Many things are more suitable for Field to study.

After receiving Gu Shi's affirmative answer, Field did not stay any longer. After assigning the next stage task to Gu Shi, he hurried back to the laboratory with the black book.

In the following time, Gu Shi first took a few days off to rest. After all, he had been studying continuously for a long time in the ruins.

When it comes to studying, you still need to combine work and rest.

Gu Shi took a few days off like this, and also went back to the base to submit a report to Wang Feng, and then took back the stack of manuscripts that he had given to Zhang Bei and others from him.

Wang Feng handed the manuscript in the box to Gu Shi. "Here, Zhang Bei specifically told me to keep it safe. Count it, there's not a single one missing."

Gu Shi put the box into his space ring and said with a smile, "You don't have to be so careful. Captain Wang, you actually found a box specifically for it."

After taking the things, Gu Shi asked again: "Speaking of which, what did Captain Zhang and the others gain this time? I would really feel bad if I wasted so much of their time in vain."

Wang Feng's expression became a little strange, as if he was trying to suppress a laugh. "It's not like they didn't gain anything at all."

Seeing him like this, Gu Shi suddenly became curious and asked quickly, "What's going on? Could it be that they brought back something incredible?"

Wang Feng explained: "I can only say that Zhang Bei's brother is very smart. After they got the manuscripts you gave them, they ran to several buildings in a row, but still found nothing.

Zhang Bei had already planned to retreat, but his brother had a sudden idea and pried a small magic circle out of the ground. It turned out that the magic circle was still usable.

After listening to Wang Feng's words, Gu Shi thought about it carefully and it seemed that there was really no problem. After all, some magic arrays were even specially drawn on easy-to-carry items for the convenience of use.

As long as Zhang Nan can pry off the magic circle completely without causing any damage, the magic circle will still be able to function.

Wang Feng continued, "After discovering this, the three of them simply started to destroy the magic circle in the ruins.

The manuscripts you sent have been of great help to them, making it easier for the three of them to target small magic circles.

So in the end, Zhang Bei and his men brought back a bunch of stone slabs to report back."

Gu Shi sighed, "That sounds pretty good. If I had thought of this method at the time, I would definitely have brought some stone tablets with me."

Even if you don’t understand the principles of these magic circles, it doesn’t matter. Anthony’s manuscripts have detailed records, so you can just use the ready-made ones.

Gu Shi thought about it and felt a little regretful. Although he had all the methods of drawing these magic circles, drawing magic circles required a lot of precious materials.

Even if he knew how to draw them, he would not be able to successfully replicate these magic circles without the corresponding materials.

Moreover, these magic circles are very old. After such a long time, the materials they use may have disappeared as well.

Thinking of this, Gu Shi immediately felt that Zhang Nan was simply a genius, who could actually come up with such an unconventional idea.