Flocks of birds circled and chased in mid-air, chirping from time to time, and in the woods below, Song Yi was walking slowly, his eyes scanning back and forth around, as if looking for something, and after about five or six minutes, an abandoned and dilapidated building finally appeared in his sight.

"Is this it...?"

Dozens of meters ahead, a spacious sand and gravel clearing, has been overgrown with half-human height weeds, and in this weed jungle, a dilapidated pavilion stands quietly, from the outside, this pavilion is more than twice as large as the library pavilion, but now it looks dilapidated, most of the building is as if it has been burned by some flame, showing a kind of charred black, and the other half is already covered with cyan moss, and there are a lot of flowers and vines entwined up, covering the roof.

Song Yi stood not far away, he looked at the scene in front of him that looked like the relics of time, and suddenly sighed in his heart, if he didn't know, he couldn't associate everything in front of him with the larger library four years ago.

A few days ago, when Song Yi first arrived at the library pavilion, the old man sitting at the door told him that one mile away was the old library pavilion, and Song Yi also found this place according to the direction pointed by the old man.

Pushing away the lush weeds with his hands, Song Yi soon arrived in front of the dilapidated pavilion, he first stood in front of the door and looked, first of all, a charred black wooden plaque with the same height as a person at his feet, the words 'Library Pavilion' were still faintly visible, this plaque should have been hung on the top of the door, but after the fire four years ago, it was taken down, and when Song Yi looked into the dilapidated pavilion, some of the bookshelves that were burned by the fire almost collapsed entered his eyes.

Song Yi turned around and pulled up a bundle of weeds on the ground, and then went directly into the pavilion, he used the straw bundle in his hand to clean up the scattered spider silk while scanning the old library that had been burned to the ground.

The charred scraps of paper scattered all over the ground, the beams and pillars that collapsed overhead, and the wavy flames left behind by the fire burning upwards... These are not much different from the fire scenes that Song Yi has surveyed in the past, and through the diffusion traces of these flame patterns, Song Yi gradually touched towards the fire point.

In fact, Song Yi doesn't like this kind of fire scene, in his experience, if a case occurs in a fire, then not to mention that the fire will burn most of the traces of the crime scene, and the firefighters, who are the first contacts at the scene, will also destroy the scene uncontrollably, and the superposition of the two will make all the scene investigators crazy, not to mention the scene in front of him that has passed four years.

However, although Song Yi did not expect to find anything, he still followed the path of the flames and began to look for the source of the fire, he carefully inspected the four places in the pavilion, the beam roof, the walls, including the dimly lit rooms, until on the wall of a small room, Song Yi finally found the already vague V-shaped flame burning traces.

The so-called V-shaped burning mark is a kind of ignition point, which is formed because when the flame expands upwards from the ground, the fire is perpendicular to the ground and burns more and more vigorously the upward, and usually the personnel who investigate the fire scene will give priority to looking for this V-shaped burning mark.

"Did it start here?" Looking at the burn in the corner of the dim room, Song Yi squatted down, and then scanned the layout of the room, first of all, a bed that had been burned to the point of only the outline, which showed that this place was once inhabited, Song Yi looked at the upper end of the wall of the room, and sure enough, as he expected, there was a small closed window, which was the vent of the room and the window that could provide some light during the day.

Song Yi cautiously stepped on the bed that might collapse at any time, he gently pushed the window, originally he wanted to slow down the room and add a little light, but he didn't expect Song Yi's hand to touch the window and fall out.

The window landed outside the building, startling a few small birds not far away.

"Ahem..."The dust scattered from the disintegrating window also made Song Yi a little choked, and after waving his hand, he continued to carefully check the situation of the fire source in the house through the glimmer of light shining from the window.

Song Yi first thought about this question, and the first possibility that he thought of was the candle flame of the candle, perhaps someone accidentally knocked over the candle placed in the room to the ground, and then accidentally caused the fire; for this reason, Song Yi began to sweep the ground under the V-shaped fire source with the straw bale in his hand, and after he wiped off all the charcoal and dust, he touched the ground with his hand.

However, the smoothness that should have been there did not appear, which made Song Yi puzzled for a moment, and he buckled it on the ground with his fingernails again, but no candles appeared at all.

"Not a candle?" This discovery made Song Yi begin to realize that something was wrong, and there were no lighters or short circuits in wires in this other world, so what other sources of fire could there be?

Song Yi knew that there was no answer to this question for the time being, and after he had identified the source of the fire, he immediately launched the next stage of investigation - to restore the fire history.

Following the known source of the fire, Song Yi once again looked at all the burning patterns, and finally he determined that the fire first spread from the room just now, then to several rooms on the left side of the library pavilion, and then to the various bookshelves full of flammable materials.

"Hmm... That's it?"

Song Yi, who was restoring the fire passing, suddenly saw a trace in a small corridor, he took a closer look, and found that it was a humanoid silhouette that contrasted sharply with the scorched black around him, and from the outline, this was about a woman about one meter six or five tall.

Song Yi's eyes couldn't help but sink when he saw the traces of this humanoid, and an emotion hidden in the depths of his heart couldn't help but explode, it was the bloodline that the young master of the Ming Hall had integrated into the depths of Song Yi's consciousness.

Obviously, Su Wan'er fell here in the fire four years ago, and Song Yi couldn't determine this just by a silhouette, but for some reason, when he reached out to touch this trace on the ground, an indescribable feeling spread to his whole body through his fingertips.

That feeling goes straight to the depths of the soul.

Retracting his fingers from the ground, Song Yi bowed slightly to this trace, and then continued to look for another trace that was equally important here, Song Yi knew that in the fire four years ago, in addition to Su Wan'er, there was another person who died, that is, Song Tianyuan's mother, Li Xiangyu.

And another trace that matched it was quickly found by Song Yi, on a wall not far away, Li Xiangyu obviously leaned against the wall and died, but some things that appeared next made Song Yi's pupils shrink slightly.

It was a dark red line in a very hidden gap in the corner of the wall.

Looking at the hidden and almost invisible red lines, a certain premonition in Song Yi's heart suddenly became more and more intense, coupled with the traces of candles that had not been found before, a rough guess began to appear in Song Yi's heart.

The truth four years ago was far from being as simple as the rest of the Song family thought.

And just when Song Yi began to construct that guess in his heart, a voice came from behind him, but it suddenly startled Song Yi.

"Xiaoyi, what are you doing here?"

The sudden voice was not unfamiliar to Song Yi, when he looked back, he saw a figure in a blue dress who had appeared in the dilapidated pavilion at some point, the girl was carrying the same short sword as Song Yi when they first met, and the look with a little doubt was looking at Song Yi.

The person who appeared was none other than Song Yuqing.

(To be continued)