Su Tang took a step forward, and then, suddenly turned around, flashed his sword, and the sword light pierced the old woman's heart like a dazzling flying rainbow.

He just felt that something was wrong just now, but the old woman lied to her face, obviously with malicious intent, and wanted to trick him Su Tang into the cave.

The old woman didn't expect Su Tang to make a sudden move, and when she reacted, the bright light had already stung her eyes, and she couldn't see anything for a while, so she tried her best to avoid it.

Burst...... The sword light pierced the old woman's shoulder, Su Tang's wrist twisted, and the sword light picked up the sword again.

Although the old woman couldn't see it, she still had insight into Su Tang's vicious intentions, and began to fly back again.

Su Tang's sword light left a piercing wound several inches long on the old woman's shoulder, and black blood splattered rhythmically from the wound.

The other party's blood was actually jet black? Su Tang was stunned.

The old woman continued to retreat, then opened her mouth, and a puff of pale green smoke condensed into an air mass before disappearing into the air.

Su Tang knew that the evil flower he took could cure all kinds of strange poisons, but there was one poison that could not be resolved, and that was dirty.

Seeing a cloud of smoke erupt from the mouth with several gray-black front teeth, Su Tang immediately dodged to the side, and the sword light turned to the old woman's calf.

The old woman's eyes still could not be opened, but she could only rely on feeling, and she swung the cane in her hand and threw it to one side.

Swish...... Su Tang brushed past the old woman, and the sword light passed through, cutting off one of the old woman's calves.

The old woman let out a cry of pain, and her body began to fall involuntarily, but she had not lost her fighting spirit, and continued to swing her crutches wildly.

Su Tang's Sunset Sword flashed one after another, stabbing the old woman's wrists, and then flew up and kicked the old woman's heart. Su Tang deliberately found this angle, and the old woman was flying towards the black hole.

Bang...... Puff ...... The old woman crashed into the hole and rolled to the ground again, she still wanted to struggle, Su Tang had already fallen from the air, and the tip of the sword was on the old woman's throat.

The old woman was stunned and stretched out her hands, as if to grab Su Tang's Sunset Sword, but she put it down after the last moment.

"Where did you get the scabbard?" asked Su Tang coldly.

The old woman was silent.

"Where is she?" asked Su Tang again.

The old woman still didn't speak, and as soon as Su Tang wanted to exert some strength, a sharp howl suddenly came from the cave, and then something hit violently, causing a deafening roar.

Su Tang was shocked in his heart, and then shook his hand and shot out the fire spirit bead, the fire spirit bead fluttered and flew into the hole, illuminating the nearby cave wall, flying almost ten meters away, he suddenly saw a terrifying giant mouth, because the cave wall was very narrow, so the mouth was stuck in it, it seemed to be very hungry, the upper and lower lips were constantly opening and closing, revealing two rows of ivory-sized sharp teeth, and making a rapid breathing sound.

The next moment, a long tongue shot out from the giant mouth, and rolled towards the fire spirit bead like lightning, Su Tang didn't have time to control it, the long tongue had already touched the fire spirit bead, and then the fire spirit bead was shattered.

The inexplicable gains and losses made the giant mouth extremely angry, and its long tongue twitched back and forth in the cave wall frantically, causing the cave wall to echo and sand and stone splash.

Su Tang's face became very gloomy, he understood, the old woman was treating him as food, and he wanted to send him in to feed the giant mouth, Xi Xiaoru's scabbard was here, could it be that something had happened?

"Say, where is her person?" Su Tang shouted.

"Quack quack...... Seeing that Su Tang's mood changed drastically, the old woman let out a gloating laugh.

Su Tang almost lost control, and even wanted to rush in and split the giant mouth, he wanted to see people alive and corpses when he died, but he also understood that he should keep his sanity, take a long breath, and calm his emotions a little.

"Quack......" The old woman was still laughing.

Su Tang's eyes showed a fierce color, he could feel that the other party's temperament was different from ordinary people, it seemed that because of the perennial loneliness or something, it became a little distorted, and it was almost impossible to make the other party soften and confide the truth.

It can be said that the more excited he is, the happier the other person will be, even though they have never had a grudge before.

Su Tang suddenly raised his sword, and then kicked the old woman in the waist, and the old woman rolled and flew into the hole

After a brief moment of consternation, the old woman understood what Su Tang was going to do, and roared and struggled to rush out, but one of her legs had been scrapped, and her hands were also injured, and her movements seemed to be very slow, at least not as good as the tongue.

Su Tang could see it clearly, the tongue rolled over, wrapped around the old woman's body, and then twitched slightly, the old woman suddenly disappeared, and the tongue was gone, and the giant mouth was making a numbing chewing sound, and black blood kept dripping down the teeth of the giant mouth.

Su Tang turned around slowly, his eyes swept around, he had just figured it out, only the scabbard couldn't explain anything

Xi Xiaoru regards the Tiansha Knife as the root of his life, and has said several times that the knife is in the person or something, if the Tiansha Knife is here, then Xi Xiaoru will be killed nine times out of ten.

Without the Tiansha Knife, it proves that Xi Xiaoru is still alive.

In other words, it was really the old woman who harmed Xi Xiaoru, and the Tiansha knife must have fallen into her hands.

Of course, these are just Su Tang's speculations, and it is related to Xi Xiaoru's safety, and his subconscious will definitely think in a good way.

Su Tang searched carefully, and at a distance of more than 100 meters from the entrance of the cave, he found a wooden house, which should have been built for many years, dilapidated, and probably where the old woman lived.

Su Tang turned the wooden house upside down, searched for more than an hour, and repeatedly confirmed that it was impossible for the Heavenly Demon Knife to be here, so he breathed a long sigh of relief.

Set a fire and burn down the wooden house, Su Tang took the wooden house as the center and searched around. Su Tang, who regained his composure, can always remember a lot of details, the old woman knows that the owner of the Dao scabbard is a girl, so she should have seen Xi Xiaoru, perhaps, at that time, Xi Xiaoru was fighting against the enemy, and she had no time to take care of it, and she didn't find that the old woman was hiding in the dark, which can also explain the origin of the scabbard, the battle situation at that time must have been very fierce, Xi Xiaoru's back was attacked, the scabbard was damaged and fell off, and it fell into the hands of the old woman. As for what the old woman was going to do when she picked up the scabbard, and what that huge mouth was, he didn't bother to think about it, it had nothing to do with him.

In other words, there must have been traces of a fierce fight nearby.

Su Tang didn't dare to rest, flying in circles over the dense forest, before entering the Poison Dragon Domain, he didn't expect that this place would be so unpeaceful, and the dumb slave didn't know how many people's eyes Lu Dao had attracted, making him more and more worried about Xi Xiaoru.