After Martin finished his work and put down his pen, the exploration team suddenly came to his mind. He had been so busy these days that he had neglected it.

He quickly pulled out his communication crystal and dialed the number. Soon, Surveyor Hank answered the call.

Martin couldn't wait to ask, "Hank, how is the exploration going?"

Hank responded respectfully, "My Lord, we have completed exploration work on one-fifth of the Viscount's territory. This area is indeed rich in mineral resources, but the mining sites are relatively small. So far, we have only discovered one medium-sized vein, a black crystal iron vein."

Martin was moved when he heard this. He felt that this vein of minerals was worth mining, and then he asked, "Where is the specific location?"

Hank described it in detail. Martin turned to look at the military map next to him and, based on Hank's description, roughly determined the location of the mineral vein.

Martin carefully marked the location on the map and ended his communication with Hank.

After thinking for a moment, he sent another instruction to Roland through the communication, asking him to send another 2,000 strong slaves to the Loyalty Valley, and to let the instructors in the valley teach these slaves and make sure they understand the meaning of loyalty.

After all, it's time to replenish the remaining two knightly orders to full strength.

Not long after, Roland replied, stating that he understood Martin's intention and immediately arranged for his men to handle the matter. Martin read the reply and put away the communication crystal.

At noon, Martin, Eric, Betan, Hefner and the other two dragons gathered for lunch. The atmosphere was harmonious and everyone was talking happily.

After lunch, Martin asked everyone to go downstairs to rest and told them to set off for the Earldom of Filing at 1:00 p.m.

Time flew by, and an hour passed in the blink of an eye. Following Martin's command, the group rode on the dragon and headed towards the Earldom of Feiling.

In Charlemagne's capital, the king tightly grasped the two pieces of intelligence in his hands, his face turning blue with anger.

One piece of intelligence showed that the Third Prince had designed to get himself imprisoned, and then he and Martin and their guards rushed to the Luoqiu Mountains; the other piece of intelligence was collected from the Orc Kingdom, and it was about an SS-level magic item.

When the contents of the two pieces of intelligence were connected in his mind, the king was so furious that he almost didn't dare to think about the connection behind them.

The fact that Martin possessed a dragon knight was particularly distressing to the king. In his view, the dragon knight power that should have belonged to the royal family had now fallen into the hands of others.

The king knew that this was most likely information deliberately leaked by the Orc Kingdom, but even so, matters related to the dragon still felt like a thorn in his throat.

He really couldn't make this public. He couldn't announce to everyone that the third prince of the kingdom had become a traitor for an SS-level magic item, right?

However, the king would never give up. After a moment's deliberation, he picked up the communication crystal and dialed the number of Grand Duke Pietro, Duke of the Southern Territory.

As for what the two talked about during the communication, no one knows.

After six days of non-stop travel, Martin and his party finally arrived at the territory of Earl of Filling.

They found a secluded place to rest for a while, then crossed the border and headed straight for the place mentioned by the mercenary according to the map.

Another half an hour later, Martin was looking at the map when he suddenly stopped, and Eric and the others also stopped.

Martin repeatedly compared the map with the terrain below, and then said with certainty: "This is it." After that, he signaled Eric and others to land together.

This was a depression surrounded by mountains. Martin looked around and didn't notice anything special.

After a brief thought, he instructed Eric and the others, as well as Hefna, to use their sensing abilities to gradually explore the surroundings.

After receiving the order, everyone mobilized the power of the knights. Frost Ning and Hefna also used the dragon clan's unique detection skills to carefully search the surroundings.

Martin chose to sit on Hefna's back, which not only ensured his own safety but also enabled him to evacuate quickly in case of an emergency.

The exploration process was really difficult. From early morning to nightfall, everyone tried their best but gained nothing.

Having found no unusual locations, nor any signs of a strong concentration of magical energy, Martin was completely lost and had no choice but to have everyone return to their makeshift camp to rest.

During the break, Martin had an idea: to exchange gold coins for relevant information from the Shadow Intelligence Guild. However, he soon became entangled.

He was worried that if the Shadow Intelligence Guild learned that he had discovered a secret realm that was suspected to belong to someone else, would they sell this information to others for profit? After all, such information was priceless in the eyes of those with ulterior motives.

After much thought, Martin decided that he could only continue searching for a few more days. If he still had no clue, he would have to go to Count Feiling.

Even if she was unwilling to reveal it voluntarily, Martin had to find a way to make her speak and get the information he wanted.

In the next few days, the worst news happened. Eric and others still found nothing, and Martin immediately decided not to continue searching.

At night, he went to Earl Feiling's Castle and asked about the location of the secret realm and how to open it. Martin originally wanted to find the entrance to the secret realm and directly let several sky warriors use brute force to break a gap so that people could go in. Who knew that he couldn't even find the entrance. It seemed that he could only go to Earl Feiling.

As night fell, Martin took out a few B-level magic items "Stealth Amulets" and asked them to wear them. Then, he took advantage of the darkness to go to the Castle of Earl of Filing.

The group quickly headed towards Count Filing's Castle. Upon arrival, they discovered that the number of guards had significantly increased. The entire castle was bustling with activity, and all city affairs were running smoothly.

Martin and his group were extremely cautious, trying their best to avoid alerting anyone along the way. They quietly crossed the castle's defenses and sneaked into the castle.

Martin whispered to Eric and the others, "Everyone, be careful to send out your intuition and thoroughly search the entire Earl's Castle to see if you can find any secrets. If there really is a secret realm, there will definitely be some clues left in the castle. After all, a space ring can't hold living things."

After receiving the order, everyone immediately dispersed and started searching.

Martin and Hefna walked in another direction, their figures gradually disappearing in the shadow of the castle, carefully exploring the area.