The identity of this underground city is basically out of the bag.

  The buildings that fill the field of vision are generally in the Baroque style, fresh and bright, but in the treatment of external contours, domes, and brick walls, simple horizontal and vertical lines and a simplified style are adopted, revealing a thick, solid, and solemn atmosphere.

  This was a common building style in northern cities of San Girolamo Nania after the Renaissance.

  Some books and letters found in the house, the writing habits, Danish characters, the arrangement and design concept of furniture decorations, and the words on the shop signs in the streets and alleys, almost every detail reveals a Danish flavor.

  The tricolor flags and emblems of Saint Gellért imprinted on the armor in the arsenal are undoubtedly the strongest evidence.

  Borussia, that's the name of this city.

  "Three thousand years ago, Saint Gederland and Saint Roland fought a war that lasted for ten years, with over a hundred cities affected by the flames of war. However, what people remember most is Polusna, because the general from the Roland family used a forbidden spell to make the entire city disappear on the Western Continent."

  Maud is very proud, although I had guessed before that it was Polusna, but no conclusive evidence was collected, and she would not open her mouth.

  Homa doesn't allow herself to make mistakes!

  Actually, going to the town hall to look at documents and daily correspondence, or going to the duke's mansion to take a look at the family crest, everything will be clear. However, with Tangdun's strength, it is obviously impossible to stroll around in the streets filled with undead creatures, too dangerous.

  "What's so special about this spell?" Tang Zheng didn't suspect anything because he had never seen the Demon Scripture make a mistake after being with it for so long.

  "Plane Sink Art!" Holma projected the words, "Be careful, the spider is about to spit out venom."

  "I'm staring at you!"

  Dundon raised his left hand, holding a double-layered tower shield, and suddenly exerted force, slamming it forward at the shadow spider that had just opened its mouth in front of him.

  On the long street, the battle was still going on, and there were already many broken corpses of spiders lying around.

  Bang, only a little green venom was sprayed out, and the spider's mouthpiece was closed, with its mouth full of venom being choked back, making it even more ferocious.

  Despite its valiant efforts, it couldn't even break through the defense of Tongdon, who was wearing a full set of 'Hundred Heroes' heavy armor.

  No. 4 Ghoul has completely broken down and crashed into a nearby wall corner, while No. 5 and No. 6 fearlessly sandwiched the majestic Shadow Spider, which was even more powerful than the War Horse, showcasing the meat shield effect perfectly.

  Seris floats in mid-air, firing a phosphorus rocket at Spider.

  "So that means Borusna is no longer in the plane where the Western Continent is, right?" Tanton asked, "Where are we? Or rather, what's above this underground city?"

  In the multiverse, there are many planes of existence, vast as the stars, and the Western Continent is just one of the lower planes.

  "I don't know." Holma gave a helpless expression, "Even the marshal couldn't be certain, because the Land Sinking Technique is an incomplete super forbidden spell."

  "What's going on with these ghouls? Does the Land Sinking Technique also have an effect of summoning vengeful spirits?"

  The Lich Plague is a disease that originated from the Necromancer's plane, which can turn human beings into undead creatures. It is said to have been discovered by accident by a powerful and evil lich who was researching skeletal puppet cell activation.

  This is an invention that should not exist in the world, even the immortal clan is deeply taboo and explicitly prohibits its use.

  "There's no doubt that this city has experienced a zombie outbreak, and those undead creatures are the result. As for the cause of the outbreak, it's clearly a mystery buried in history."

  The Demon King is not a god. Although he has existed for a long time, the Western Continent is too vast, and some extremely secretive events are beyond Holma's knowledge.

  "That marshal must have been in the know, unfortunately he can't crawl out of his grave to tell us the truth." Danton quipped, suddenly thinking of a possibility, the demonic sword that slashed at the Shadow Spider also swung off target.

  "What's wrong?" Serres jumped in fright, as Tangton rarely made mistakes.

  "This city has had an outbreak of the undead plague, what if I get infected? I don't want to become an undead creature!" Danton thought that if he became a rotten ghoul, he would rather die.

  "It's been three thousand years, those epidemic bacteria are probably all dried up."

  Downton had just let out a sigh of relief when Holma's next sentence made him look bitter.

  "But there is still a risk of infection, and with all the rotting corpses around, there will definitely be other bacteria. You should prepare some medicine just in case." Mo Tian comforted, "You don't have to worry too much, you're a Holy Knight, many divine techniques can purify your body."

  "That's good!" Tong Dun felt relieved.

  "Now that we've mentioned the plague, I have even more doubts. Who set up the portal leading to Crow Ridge?" The magic book seemed to be in a bad mood, changing the color of the projected text to dark green and flickering like a ghostly flame that was about to go out at any moment.

  Downton's eyebrows furrowed.

  "What is Seres' true identity? With that brother of hers having a magical outfit so luxurious it could be the family heirloom of some middle-ranking noble, how could she possibly wear it out casually?" The Magic Dictionary was very clever and had keen observational skills.

  Danton looked at Seres, this girl had a childish face, blinked her blue sapphire-like big eyes, full of innocent expression.

  As a natural-born Death Witch, Seres has lost too many memories.

  "What on earth have you decided to sacrifice with your magic?" The Magic Book was worried.

  It has been two days since he took down the military arsenal, and he has already reached a first-class peak level, ready to attack the second class at any time. However, Tang Don still hasn't made thorough preparations.

  "Everyone wants it, what to do? Can't we discuss with the cheap god and buy one get one free?" Tang Dun pointed to the sixth card slot, this guy reacted more than the fifth.

  "Save your nonsense for when you're asleep." Holma rolled her eyes, "Those are Dragon-slaying stage divine techniques. Even if a cheap deity lost all sense of dignity, they wouldn't give them away!"

  "Then it's the Sacred Aegis, 1,500 soul sacrifices, and a 15-day repayment!" Tong Don was actually quite satisfied with this transaction.

  Sacred Aegis, Dragon Slaying Stage Divine Art. After activation, it consumes magical energy and forms a layer of armor on the skin's surface. It grants complete immunity to all magic, martial skills, and divine arts below the Warlord stage, and reduces damage from Judgment stage attacks by half.

  Compared to the similarly ranked Undead Confession, Divine Shield can be said to be super practical. However, Tang Don's rank is too low and his stored magical energy is too little, so he can only sustain the shield for three seconds before exhausting his magical energy. Therefore, it cannot be used unless in a critical situation.

  "Stop messing around, hurry up and kill it, then go catch a Corpse Fiend Minion. Today we're breaking through to Soul Stage Two!"

  Although Tang Dun's cultivation speed was already very fast, the Demon Scripture was still not satisfied. At least when facing the Robinson trio and those low-level undead creatures, Tang Dun had to reach a level where he could protect himself.

  "Hmm!" Danton unleashed a big move, and for him, the already heavily injured Shadow Spider was no pressure at all.

  With one strike of the giant's seal, it was easily cut in two.

  Dig out the magic core, wipe clean the bloodstains and put it away. Tang Don walked towards No. 4 and chopped off its head.

  Although the failure rate of the vengeful spirits' confessions was still high, with Seres as a scout, Tangton's search for the ghouls wasn't that simple. Under the vast number of them, he used less than half an hour and had seven and eight magic servants behind him.

  Four ghouls wearing full sets of Crusader heavy infantry armor, covering their ugly bodies, looked much cooler than they originally were.

  When a Magician advances in rank, they will be rejected by the law of the plane and suffer elemental strikes and other attacks, so it's very likely to make a big noise. Tang Don is worried that it will attract the attention of undead creatures or Robinson's trio, so he chose a secluded courtyard, where the wandering ghouls had been cleaned up a few days ago.

  "Seris, take the Wraiths and guard the gate, be prepared for sudden situations." Homa floated in mid-air, casting a shadowy text, "Let's begin once you're ready!"

  The war space opened, and the bronze giant hand had already piled up all the magic stones accumulated over this period of time on the floor.

  Tang Dun sat on the ground, placing a dozen or so weapons beside him, and began to meditate.

  In less than a minute, soul force teams appeared all around, then unfolded into Soul Angels, absorbing magical energy, condensing them into feathers and shooting them at Tongdon's body.

  As time passed, the Soul Angels appeared one after another, eventually reaching twenty. After infusing the Tangdon Soul Seed with magical energy, their bodies suddenly resonated with a hollow and elegant sacred song, accelerating the condensation of feathers by twice the speed, marking the beginning of the process to impact the second stage of the soul.

  The power of the Soul Angel was in full operation, and under the blessing of the Holy Song, the magical tide from all directions surged into the courtyard like a mad wave.

  Concentration rapidly increased, frequent bursts of starlight-like spots.

  Serres knew that this promotion was important to Tongdon, so she was worried about him, frequently turning her head back and forth, finally hiding in the corner of the wall to take a peek, if not for fear of being scolded by Holma, she would have come in early.

  Throughout the courtyard, almost all of it was magical glow spots, like fireflies floating around, they followed the Soul Angel's pull, surrounding Tang Dun's body, almost drowning him.

  Saturated soul seeds cannot carry magic power, so they surged into Tang Dun's body.

  "Don't rush, gather a bit more!" Holma had already cast the words, and Tanton, who was meditating, couldn't see them anymore.

  The demonic energy that gathers in the body will be the power to impact the soul seed, just like seawater, the more it accumulates, the greater the force of the impact, and the higher the success rate. However, not all demon energy holders can withstand this extreme pain beyond limits.