"Glowing?" Zuan was taken aback and subconsciously turned his head. Following her gaze, sure enough, two points of blue light suddenly appeared in the dark, sunken eye sockets of a skull, as if the skull had opened its eyes, looking extremely eerie.
Zuan subconsciously took a step back, swallowing hard: "Does your world have ghosts?"
Pei Mianman was also flustered. The mass grave was already terrifying enough, filled with bones, but now seeing the skull's eyes shining made her hair stand on end. For a moment, she didn't even notice the words "your world" he said: "Ghosts? You mean undead creatures? There are some scattered records in history. Some cultivators took a different path and began to study some necromancy techniques that could control corpses."
Zuan thought of the skeleton soldiers he had seen in the Yao Guang Secret Realm, and even Zhang Han, who were all undead creatures in some ways. He wondered what kind of being the Empress was...
But now is not the time to think about these things. He looked at the skeleton with blue glowing eyes not far away and said, "They shouldn't be undead creatures. I've seen them before, and they feel different."
In the ancient tomb in the Yao Guang Secret Realm, although the undead creatures had low intelligence, you could faintly feel an energy fluctuation on their bodies. But these skeletons did not have that fluctuation, and even the light in their eye sockets was very different.
"Then what do you think about this skeleton?" Pei Mianman was still a little scared. She was much more timid than usual, whether because she was weak from her injury or because she had been with Zu An.
"It might be phosphorus. In places like cemeteries where corpses gather, the decomposing bodies produce phosphorus, a chemical substance. Phosphorus is flammable, so it can easily ignite blue flames. Many people don't know the principle behind it and just think it's a ghost story," Zu'an explained to her.
"Is phosphorus similar to that iron oxide you mentioned before?" Pei Mianman asked curiously. She considered herself well-read, but she had never seen these things in books before.
"Pretty much, they're all chemical substances." Zuan's face flushed. He had just been so confident that the soil was stained red because of the presence of iron oxide, but it turned out to be blood. He hoped he wouldn't be proven wrong this time.
As if hearing his thoughts, Pei Mianman pointed tremblingly to the other side: "Why are there more and more people with glowing eyes?"
Zuan hurriedly looked over and discovered that, in addition to the skull he had seen at the beginning, the deep-set eye sockets of the surrounding skulls were also glowing with blue light.
It's important to know that there are tens of thousands of skeletons in this giant pit. As one skeleton after another began to light up their eye sockets, a dense, overwhelming light filled the originally dark pit bottom, creating a truly shocking visual impact.
Moreover, a series of rustling sounds suddenly came from the entire giant pit, even though there was no one in sight, which made it seem even more eerie.
"Are you... sure this is phosphorescence?" Pei Mianman clung tightly to his side, her voice tinged with inexplicable panic.
Zuan couldn't help but swallow hard. Clearly, this couldn't be phosphorescence, otherwise, how could it be such a coincidence that it was burning entirely inside the skull's eyes?
Damn it, even after traveling through time for so long, I still instinctively try to explain all sorts of phenomena with science, but many things in this world are inherently unscientific.
The soft, bouncy touch on his arm made Zu An's mind wander, but it also emboldened him a bit. He said in a deep voice, "I'll go see what's going on!" Thinking too much here would only scare him.
Pei Mianman reminded her, "Then be careful."
She followed behind him as she spoke, partly to keep an eye on him, and partly because she felt more at ease being by his side.
Zaun took out the Tai'a sword and held it in his hand. He cautiously approached the nearest skull, keeping a watchful eye on the enemy's sudden attack.
But the skull just kept its head down, remaining motionless in the same position as before.
Zaun didn't think it was playing a trick to lure the enemy in, since undead creatures usually have little intelligence and are incapable of such schemes.
He knelt down beside a skeleton: "Senior, I did not mean to disturb you, but I wanted to find out the reason so that you could rest in peace."
After he finished speaking, he reached out and slowly picked up the other person's skull, wanting to find out what was going on.
As soon as he picked it up, two points of cold light from the skull's eye sockets suddenly shone brightly and shot towards his face.
In that instant, he saw clearly what those two points of light were—not will-o'-the-wisps, nor ghosts, but two strange snakes.
These two strange snakes were not large, only about a foot in length, with thin bodies but very large heads.
There was a fleshy growth on the top of his head, and on the face—let's call it the face for now—there was a vertical eye, and it was this eye that shone with a blue light.
Normally, snakes have eyes on the sides, and they are small and round. This snake's eye is vertical, and it only has one eye, which looks extremely eerie.
Its body is covered with red and black stripes, and its various features make it appear extremely poisonous from any angle.
When Zaun went to retrieve the skull, he was already fully prepared. Upon seeing this, he flashed his Tai'a sword and sliced the two snakes into four pieces.
However, his pupils immediately contracted, because even after the two snakes were cut off, their heads continued their momentum and charged towards him.
He then remembered that snakes could still move after their heads were severed, and he had heard many similar news stories in his past life about people dying from snake poisoning after their heads were cut off.
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