Under Chixiao's guidance, Long Zheng quickly learned to use the ability to extrapolate the past.

He tried to close his eyes, and when he opened them again, a strange light began to flow in his eyes, and in Long Zheng's eyes, the surrounding scenery changed slightly.

Looking intently at the location where the original crank was, a flash of light appeared.

The light slowly spread, like a mirror, and the picture on it instantly showed the position of the crank, not far from here.

"I sensed it, and the crank was on a reef by the river."

Long Zheng closed his eyes again, and when he opened them again, his eyes returned to normal.

Chixiao smiled: "This ability is easy to use, right?" Let's go, then. ”

Nodding, Long Zheng raised his eyebrows and said, "It's very useful." ”

If he wanted to go to the location of the reef by the river, Long Zheng had to continue to walk along the train tracks, which was also in order to be able to find more clues, Long Zheng did not choose to fly directly to the location of the reef.

After a while, Long Zheng found something different in the orbit again.

Chixiao said, "Rope? There's a rope on the train tracks? Somebody can't be tied up here and murdered. In terms of mortal means, it is quite ruthless, but if you have special abilities, I don't think there is any need to do more. ”

Long Zheng took a closer look, frowned, and said, "There shouldn't be anyone murdered here, right?" After all...... There was no blood at all. Or maybe the people who were tied up here finally broke free and ran away on their own? ”

Neither of them could see anything, after all, neither of them was an expert in solving puzzles and exploring, generally speaking, Chixiao belonged to the type that broke with a sword when encountering danger, and Long Zheng was the type that opened infinite life and was tough.

Therefore, this commission of the old man guarding the tomb is really difficult to fight for the dragon......

Not long after he left, Long Zheng's eyes lit up.

"It's blood!"

On one of the tracks of the railway, there were bloody, dried blood stains, which kept spreading, spreading into the distance, and at the end of the bloodstains was a broken thigh, which looked cruel and violent.

Chixiao said: "It seems that this person's thigh was dragged away from the railroad tracks?" ”

Long Zheng carried the Chixiao Sword on his back and followed the path in the direction of the river along the bloodstains.

Shortly after, they found the corpse of a male with severed legs, which seemed to fit perfectly with the severed legs on the railroad tracks.

"This is the guy just now, right?" Long Zheng muttered.

Chi Xiao pondered for a moment and said, "But he has obvious blunt injuries on the head, where is the first scene of the murder?" No, aren't we here for a little boy, it seems to be a bit off the beaten path. ”

Long Zheng smiled and said: "Actually, it's a bit interesting, I've been a little interested in this kind of reasoning and judging cases since I was a child, although it's a bit embarrassing, but our strength is completely fearless." With confidence, it's very interesting to do this kind of thing again. Maybe these clues can lead us to the little boy. ”

"It's not unreasonable what you said, it's just that the old man guarding the tomb didn't tell us the specific situation of the little boy, if that little boy was an ordinary person, wouldn't he have burped in this place a long time ago?" Chixiao said.

Long Zheng shook his head and said, "It shouldn't be an ordinary person. If it was an ordinary person, how could he know the old man guarding the tomb? You have to think about it, the old man who guards the tomb has been in the Yanyuan desolate ruins for a thousand years, if that little boy knows the old man who guards the tomb, wouldn't he be more than a thousand years old? No matter what happens now, it's already another old man. ”

Chixiao was silent for a moment and said, "It's also possible that the little boy was known by the old man Shouling through some means, and he has a special ability that can help the old man do something, so that's why we came to find it?" ”

It's also quite possible.

Nodding, Long Zheng thoughtfully.

Then, Chixiao said: "No matter what, anyway, let's follow this clue for the time being, otherwise it won't be a solution for us to just wander around this place." ”

Long Zheng agrees with this.

Long Zheng tried to deduce the past instead, looking at the corpse, but he couldn't deduce anything, as if there was an energy in the underworld, blocking Long Zheng's ability.

Even Chixiao was surprised.

"Even the divine position ability bestowed by the Heavenly Dao has been blocked?" Chixiao is amazed.

The two of them could only abandon this place for the time being and continue to the location of the reef.

In a short time, they found a mountain road.

Walking down, Long Zheng soon reached the location of the gravel pile by the river, and next to a reef, he saw the crank with some rust.

I picked it up and examined it.

Long Zheng found that this crank was very ordinary, there was no blood on it, and there were no clues worth finding.

Now that we've found the crank, it's better to go back to the locomotive.

Thinking like this, since it was to return to the locomotive, then the clues along the way had already been seen, so there was no need to repeat it again, and Long Zheng returned to the locomotive by flying.

Returning to the locomotive, Long Zheng studied it, then installed the crank on the gear, and kept shaking the crank a few times, wanting to generate electricity for the locomotive's engine.

"Boom ......"

After a while, a roar sounded, and Long Zheng said happily: "It's successful." ”

He immediately walked to the cab, pulled the wrench back, and let the train move down the tracks.

The sound of clanging sounded continuously, and the train started successfully, and along the tracks, from a slow speed, began to get faster and faster.

After a while, Long Zheng's eyes froze.

He slowed down the train and stopped, where he had just found the severed limb.

"There's a new clue." Long Zheng said.

That's right, Long Zheng saw something new again: dumped oil drums and hay.

This is something that can only be found from the angle of the cab on the train, and when the two of them passed by here before, they didn't even find these two things.

The oil drum was clearly knocked over by something in a hurry, and the hay showed that there had been no sunlight for a long time. Otherwise, Long Zheng should have discovered these two things as early as the first time he passed here.

Chixiao said: "Could it be that the locomotive stopped here at the beginning, and this is the first scene?" And then someone got to the location where the locomotive was just placed? ”

Long Zheng said: "It seems that I have to move the locomotive to the position of the hay. It's a bit difficult to operate directly from the cab, and it looks like I'm going to get out of the car and do my best. ”

After getting off the train, Long Zheng directly hugged the locomotive with both arms and lifted it up.

Then, Long Zheng placed it completely in its previous position, which fitted perfectly with the hay.

Squatting on the ground, watching all this dragon struggle, silently thinking.

A few moments later, he suddenly noticed something unusual under a severed tree trunk on the side of the road.

Walking quickly, Long Zheng looked at it and found a stone with blood stains, lying quietly on the ground, motionless.

On this stone, there was a faint flow of energy.