The Red Legion rested in the Nakvia Castle for a night, and in the middle of the night, a force of five thousand people marched to the next Blatt level, from the entrance to the Hills of Hivis to reach the Antanviin Sanctuary need to cross five Blatt levels, Nakvia is the first, but after crossing Nakvia, it is the Navias Mountains with ravines, and the Red troops can disperse the attack, firstly, they can effectively avoid Blatter's detection, and secondly, they can also speed up the march, and the promotion fortress has a limited time, once the promotion time is over or the Legion Leader is successfully promoted, it means that the Antanviin Legion will have a Legion leader who is enough to match the gods, that would be a catastrophe for Red.

Eth divided the Red Legion into five troops through the jungle and hills as fast as possible, while she led some elite troops along the checkpoint, behind the Nakvia Castle, there was the Hot Wind Jungle, located on the border of the Navis Mountains, in the heart of the Hivis Hills, connecting to the southeast artery, and also one of the southbound passages into the Paris Plateau, where not only was there a strong Blatt Legion to garrison, but most importantly, it was one of the most fertile areas in the entire Shivis Hills, stockpiling more than half of the Fourth Army's food and grass supplies。

The Warm Wind Jungle is also a meeting point for the Sanqi River through Shivis, which connects with lakes of all sizes and large and small to form a vast network of tributaries that crisscross the fertile land.

"Lord Taylor, further on is Tonknar, Blatter's first line of defense in Navias, are we going to bypass it or storm it?" Taylor led a surprise force from the middle of Navias, their mission was to pick up the other four troops at the Hot Wind Jungle, and as they traveled between the mountains and forests, they saw a garrison, not small.

"Tonknar?" Taylor had heard of this place, during the Second Continental War, Maxim's Poro Legion pursued the Fourth Legion here, and temporarily garrisoned Tonknar, during the garrison, Maxim found a breath product in Tonknar, called the Heart Stone, which is different from the breath crystals or breath spirit stones formed in nature, the Heart Stone is artificially polished, and it contains a variety of different breath powers, and its power is that everyone can use the breath skills inside.

The structure of the heart stone is very ingenious, Taylor has seen a heart stone that has lost its energy in the Royal Museum in Brett, which is densely packed with lines and strange parts that make people look very amazing, legend has it that this is made by a race called Crefus on the continent during the period of the gods, not only the heart stone, even the famous Vaal people on the continent are only a branch of the Crefus clan, when he saw the giant god weapon in the forgotten land of the giant god soldiers, it is very likely that it came from these people, but there is no evidenced record, but the heart stone does exist, which also proves that this race known for technology and ingenuity once existed。

It is said that the number of heartstones produced at that time was very large, and these heartstones were also taken away by the Polo Legion, and later the royal family and the sacrificial church heard the news, and frequently put pressure on Maxim to hand over the heartstones he got to the royal family and the sacrificial church, but he refused, so it also attracted the resistance and framing of the two forces for the legion.

Tonknar and the entire Navias Mountains became famous, not only the Poro Legion, but later after the Fourth Legion of Blatt completely occupied Xivis, they established a stronghold in the Hot Wind Jungle at the first time, and began to radiate from the border of Naviaas to dig the heartstone, but unfortunately, they have not found another one until now, but they firmly believe that the heartstone must still exist. However, Maxim not only found the heartstone, but also the forging blueprint of the heartstone, he did not take the blueprint with him when he evacuated Red, but notified the then Bishop of Red, and asked him to come to Tonknar to find it by himself, but before the Reds came to find it, the Fourth Legion had already sent heavy troops to blockade the entire Navias Mountains, and established a research base here for the excavation and research and manufacturing of the heartstone.

"So, Philoy, you and your squad go around this force first to the rendezvous point, and I'll join you when I go to Tonknar to explore. "Taylor is naturally very interested in Heartstone, and if there is information about Heartstone in this army, he doesn't want to miss it.

"Lord Taylor, this is too dangerous, and I can't explain it to the bishop if something happens to you. Filloe was shocked, and Bishop Eth made it clear to himself as they left that Taylor must be kept safe.

"Don't worry, these Blatter don't pose a threat to me, I just want to make sure that I don't have a head-on confrontation with them. Taylor reassured Philoy, and it was true that Taylor's strength in the battle of Castle Nakvia was obvious to all, but Philoy was still not at ease.

"No, Lord Taylor, your safety is the most important thing, what are you going to find, I will go instead of you, you and the troops will go to the assembly point. Filloy said that Taylor could not be allowed to do so in any way.

"In this way, you can go with me, and let Nas take the team first, right?" Taylor said, since no one can convince anyone, let's go together, Filloi is a white breather, with her, he is more confident.

Then under the cover of the bushes, Taylor and Philoy approached cautiously from the west side of the Tonknar station, and sure enough, as Taylor thought, this is a research station, and at the same time, there are traces of excavation in a circle around the periphery of the station, there are many defenders in this station, there are a large number of defenders at the entrance of the west gate and the east gate, about hundreds of Blat, and the strength is not bad, Taylor can sense the concentration of the breath in these Blat's bodies at a close distance is equivalent to a breather who can use level 7 breath skills, there is a cave on the north side of the station, and there is a track of a Blatter digger in the cave, Taylor and Philo look at each other, and slowly moved towards the cave on the north side.

Arriving near the cave, Taylor sensed that there were no other Blats here except for the three guards at the entrance of the cave, so they quietly sneaked into the entrance of the cave, and Philoy released a white breath in his hands, only to see the three white shields behind the three Blats at the entrance of the cave attack the back of their necks at the same time, and the three Blats fell unconscious in an instant, Taylor opened an accelerated magic circle, and Philo entered the cave.

"What is going on here?" Walking into the cave, Philoy and Taylor searched deeper along the tracks, and found that the hole was very deep, leading to the ground, and there were mining tools everywhere, as well as a large number of bones that had been scattered everywhere, and the weathering of these bones had been at least ten years old.

"This is supposed to be the underground cave where Blatter dug the heartstone. Taylor said.

"Heartstone, what's that?" Philoy had heard of this for the first time. Taylor realized that many of the Reds should not know about the existence of the Heartstone, and even most of the Brett people did not know, because the secret of the Heartstone was only known to a few people in the upper echelons of the royal family.

"Well, you can understand it as a stone with the power of a powerful breath, which only Tonknar in the realm of Red can have. Taylor simply explained that it would not be possible to explain the origin and function of the heart stone to Philoy.

"Oh, does Red still have this ore? First time I heard of it, so you said it was these stones to explore?" Filloe understood that Taylor would not give her a detailed explanation at this time, and that it would be appropriate to ask only after leaving here.

"Well, be careful that something is coming!" Taylor suddenly felt the ground shaking, there was a huge object moving at high speed in front of him, Taylor and Philo hurriedly found a mountain rock to hide, and after a while, a transport truck full of rocks and various corpses drove from the underground at high speed, and then the dim light, Taylor found that there was no one driving in the transport vehicle, and the base of the four wheels was connected to some kind of breath propulsion device, which was a transport vehicle traveling with the help of a breath device. Could Blatter have been able to build such a convenient transporter? Taylor couldn't believe it.

As they went deeper, they came to a transit point, where a lift was pulled to the mouth of the cave and then into the tracks, transporting the excavated things to the surface, Taylor and Philoy slid down the side of the lift, and what came into view was a crisscrossing of underground passages, where all the passages in all directions converged, each transporter was responsible for a track cave, and now there were no less than ten of them parked at the transit point waiting to ascend to the transport.

"It's never something Blatter can do. Filloi couldn't believe that a barbaric race like Blatt could dig such an orderly underground passage, Taylor didn't believe it either, he preferred to believe that someone was helping Blatter dig this place, this is not just digging heart stones, Taylor looked around, the ore here has a strong smell, especially the source iron concentrate, this ore is the best ore used for magic weapons, it naturally has a part of the power of breath inside, so it is extremely easy to polish into magic weapons suitable for all kinds of breath people.

"Could it be the Vaals?" Taylor saw a small group of Vaal people appear on the battlefield when he was in the southwest camp, could it be that the Vaal people have completely defected to Blatter?

"Vaals, do you mean the dwarfs who used strange things when you were in the Southwest Camp?" Filoe seemed to remember, although she didn't know the origin of the Vaals, but she had an impression of these people after seeing them with her own eyes.

"That's right, the Vaal used to be a very large ethnic group on the continent, and they completely disappeared after the Second Continental War, could it be that Blatt really bought them?" Taylor was a little uneasy in his heart, if it was really the Vaal people, then these caves and magical transportation devices would not be surprising, if Blatt could not understand the secrets of the Heart Stone, the Vaal people would not be necessarily, they were the descendants of Crefus, once they successfully researched the method of making the Heart Stone, it would be a disaster for Red and the Bretts, at that time, the advantage of the breather would be completely gone.