On the wedding day, my wife was abnormal

Lin Zhen leaned over, carefully grabbed the edge of the loose stone slab with his fingers, and slowly exerted force.

The stone slab was dug out bit by bit, revealing a shallow groove underneath!

In the groove, there was a flat disc the size of a palm, completely black, made of neither gold nor jade, with a surface as smooth as a mirror!

In the center of the disc, there is a crystal the size of a grain of rice, emitting a faint blue light!

"This is..." Chu Xiling's pupils suddenly contracted!

She quickly stepped forward and took the disc from Lin Zhen's hand, her cold eyes bursting with incredible shock and ecstasy!

"The key! The Zoroastrianism's 'Blue Key'! The sacred object mentioned in the fragments of the 'Western Fire Sutra', the legendary key to the 'Eternal Flame' altar, is hidden right here!"

Her fingers trembled slightly as she carefully examined the disc and the dark blue crystal. "This crystal contains strange energy fluctuations! It seems to be resonating with the Demonic Eye!"

"How to open it?" Lin Zhen's eyes were burning.

Chu Xiling took a deep breath and forced herself to calm down.

She turned the disc over, carefully observing the fine lines on the back, then looked up at the flaming demon head and the pair of red-flaming devil eyes in the center of the stone gate.

In her cold eyes, countless runes, trajectories, and energy nodes rapidly flowed, combined, and deduced...

"Your Highness!" She raised her head suddenly, her voice filled with a hint of barely perceptible excitement. "Please press this plate between the eyebrows of the demon's head!"

Lin Zhen took the disc, without any hesitation, and moved slightly, and he rushed to the stone gate like a ghost!

Ignoring the biting cold and the eerie red light, his arm was as steady as iron as he pressed the dark disc precisely against the center of the flaming demon's eyebrows!

"Om-!"

At the moment the disc touched the center of his eyebrows, a low and strange humming sound was heard, and the entire stone gate seemed to come alive. The intricate relief runes instantly lit up like flowing lava, emitting a dark red light.

Especially the pair of "Red Flame Demon Eyes", the dim red light was as bright as a burning flame, and a stream of hot air instantly replaced the biting cold air, gushing out from the cracks in the stone gate, forming a weird contrast with the previous coldness!

"Crack...knock..."

The sound of heavy mechanisms turning came from inside the stone gate, as if a sleeping giant beast was waking up. As everyone watched with bated breath, the huge stone gate slowly and silently opened inward, and a mixture of sulfur, saltpeter, burnt meat, and an indescribable smell of decay like aged blood rushed to the face.

Behind the stone gate was not the huge space as expected, but a narrower and deeper corridor extending downward.

The stone walls on both sides of the corridor were inlaid with fluorite that emitted a faint green light, swaying like will-o'-the-wisp, barely illuminating the way ahead.

At the end of the corridor, a wider space can be vaguely seen, emitting a richer and more heart-pounding atmosphere.

"Mao Mengji! Explore the way!" Lin Zhen said in a low voice.

"Yes!" A fierce light flashed in Mao Mengji's eyes, and his skinny figure rushed into the corridor like a ghost!

Several elite Jinwu Guards followed closely behind!

Lin Zhen, Chu Xiling, Cheng Xuan and others followed closely behind and stepped into the stone gate.

The corridor is not long, but it is extremely depressing.

In addition to the dark green fluorite, the stone walls on both sides are also engraved with denser, more twisted and weird Zoroastrian runes, as if countless pairs of eyes are peering in the darkness.

The strange mixed smell in the air grew stronger and stronger, making people sick. At the end of the corridor was a stone chamber slightly smaller than the cave outside.

The scene inside the stone chamber made everyone hold their breath instantly!

In the center of the stone chamber, there was not the huge furnace or weapon as expected, but a strangely shaped altar carved from a whole piece of huge obsidian!

The altar is in the shape of a hexagram, with a concave slot on each of the six corners, and the slot is empty.

In the center of the altar, there is a deep, bowl-sized groove. At the bottom of the groove, there is some dark red crystalline powder that looks like dried blood!

Scattered on the ground around the altar were some broken pottery jars, broken bone staffs, and several corpses that had long since turned to bones.

The corpse was wearing a tattered black robe and was in a kneeling or struggling posture, obviously having met with an accident while performing some ritual.

"Is this the altar?" Cheng Xuan's voice was filled with a hint of surprise.

"No...it's not just a sacrifice..." Chu Xiling's voice trembled a little. She quickly walked to the altar, squatted down, and carefully picked up a little dark red crystalline powder at the bottom of the groove with her fingers. She put it to the tip of her nose and sniffed it. She then observed it carefully with a special glass magnifying glass. Her cold eyes were filled with shock and a hint of fear!

"Sulfur... saltpeter... refined coal powder... and... human blood?! No... it's some kind of blood essence crystallization that contains powerful life energy! This... this is the core catalyst formula for 'Burning Sky Thunder'! The Zoroastrians used the blood essence of living people to refine this inhumane weapon!"

Lin Zhen's eyes turned cold instantly!

A surge of anger and murderous intent surged in my chest!

Gu Beichen, the Zoroastrianism, actually used the essence and blood of living people to refine such a cruel weapon!

His crime deserves the death of all his nine clans! Grind their bones and scatter their ashes!

"Your Highness! Look here!" Mao Mengji's voice came from the corner of the stone chamber.

Everyone looked in the direction of the sound and saw Mao Mengji standing in front of the innermost stone wall of the stone chamber.

The stone wall is not a natural rock wall, but is made up of huge, smoothly polished bluestone slabs.

The stone slab was covered with densely packed, even more ancient and obscure Zoroastrian runes, and in the center of these runes was a huge map made of colorful gems and metal threads.

The outline of the map is extremely strange, and it does not belong to Daqian or any known area in the surrounding area!

The direction of the mountains and rivers is twisted and hideous, like the claws of the devil!

In the center of the map, there is a huge eye-like symbol marked with a dark red gem!

Surrounding the symbol were several smaller markings! The outline of one of these markings…was surprisingly similar to the terrain of Yinshan Mountain and Broken Soul Valley.

Another marker is located in a vast area labeled "Black Water Dead Swamp".

There is another place... pointing to the far west, an unknown land marked "Eternal Hellfire".

"This is..." Chu Xiling lost her voice, "The Zoroastrianism's Sacred Fire Origin Map?! Legend has it that this sacred map records the locations of all the Eternal Flame altars and the ultimate secret of the Burning Heaven Thunder!"

Lin Zhen's eyes were fixed on the mark of "Black Water Death Swamp"!

"Trace it!" Lin Zhen's voice was low and decisive. "Spar any cost! Make a complete copy of this picture! Don't miss a single detail!"

"Yes!" Chu Xiling immediately ordered the craftsmen from the Fenlei Division to come forward and carefully begin to make rubbings.

Just as everyone's attention was drawn to the Holy Fire Origin Diagram, no one noticed that at the entrance of the stone chamber, on the inside of the stone door that had just been opened, in an extremely hidden corner close to the ground, there was an extremely tiny flame rune outlined by dark red crystal powder. After everyone stepped into the stone chamber, a barely detectable red light quietly lit up!

Then it quickly dimmed, as if it had never appeared.

"Report!" A Jinwu Guard scout rushed into the stone chamber from the corridor, panting, and knelt on one knee. "Your Highness! Urgent news from the camp! Lord Xiao sent a pigeon, and Madam Zhang Li secretly reported that Gu Beichen has made unusual movements. A large number of elite Southern Chu troops and Zoroastrian masters are secretly gathering! Their movements are unknown, but their target is suspected to be Northern Yan!"

Lin Zhen's eyes suddenly became as sharp as a knife!

He turned around suddenly, his eyes like lightning, sweeping over the strange altar, the diagram of the origin of the holy fire, and the open stone door in the stone chamber!

A strong sense of foreboding, like a cold poisonous snake, instantly wrapped around his heart!

"We've fallen into a trap!" Lin Zhen's voice was like ice falling down. "Seal this map immediately. Everyone, evacuate the stone chamber and seal the stone door."