After returning to his room from the old city, Luo Xiaotian did not continue to worry about such things. It's better to say that it's useless to dwell on it.

The only hesitation was whether to hide her presence here, as Olivia said? and... It seems that something is not quite right with Olivia, but what is wrong Luo Xiaotian really can't say.

......

Everyone in the Holy See began to get busy, it had been two days since Luo Xiaotian met Olivia that day, Luo Xiaotian didn't know what the people around him were busy with, and no one came to support Luo Xiaotian to ask him to do something too.

So, Luo Xiaotian, who was a little bored, except for taking time to look at the magic array books he brought out from the school and Teacher Victor, spent the rest of his time wandering around the old city to see if he could find anything useful.

This is the second holy city in name, but it is only a city that is still in the early stages of construction, originally in the central cathedral of the holy city, there is a library that is so large that it is not like to talk, Luo Xiaotian has not entered it, but he has only seen a corner of the library from the gap between the entrances and exits when passing by a few times. Later, during the small talk, I learned from Shirley that the library had about 103,000 books.

You must know that now is not a huge library of hundreds of thousands of books that Luo Xiaotian used to contain hundreds of thousands of books when he was on Earth, so the 103,000 books in the Central Cathedral can be said to cover almost all the knowledge produced in this world, including history, travelogues, biographies, literature, and magic. If there was a library like this here, Luo Xiaotian felt that he would not be so bored, so Luo Xiaotian put his hope in the old city, maybe somewhere in the old city, there would be interesting things that were being sold.

Books are of little use and not very valuable among civilians, so could there be any books left that have not been picked up by others?

For example, now, Luo Xiaotian stopped in front of a ruin, judging from the surrounding scattered or toppled walls and stone slabs on the floor, this should have been a large courtyard, I don't know which noble, the building in the center has been half destroyed, maybe the original owner of this manor has lost his life in the previous war, maybe he fled the country with other nobles, in short, now this ruin, including the nearby land, has lost its owner.

After three minutes of silence for the victims who might appear in the house, Luo Xiaotian stepped into the three-story building that was still half left.

While guarding his feet, Luo Xiaotian observed the surroundings, there was no doubt that the remaining half of the ruins here had already been patronized, everything of value had been emptied, and even the gold threads used as decorations on the walls had been dug up by unknown people, leaving ugly scars on the walls.

In the corner of the room there is a quaint fireplace, the iron part used to hold the charcoal fire and insulate the flame has long since disappeared, leaving only a bare masonry fireplace shell, which seems to be not used very often, because no trace of the fire has been found from any point of view.

Thank goodness that we didn't just remove the stone that built this half of the house.

When I opened the remaining rooms, there was still nothing inside, the windows had been completely removed, the wind blowing in through the empty windows had a slight autumn smell, and from here, you could see the mountains and a large forest outside the old town.

This is true on the first floor, on the second floor, and on the third floor, not only is there nothing in the room, but even the ceiling is gone, and the blue sky and white clouds, plus the bright sunlight, can be seen from the inside of the house.

Well, although I thought it well, but after such a long time, it is simply impossible to still gain something, Luo Xiaotian shook his head, and planned to stop doing such stupid things the next day.

Forget it, let's go back.

Coming out of the ruins, Luo Xiaotian took another look at the building...... No, no, it doesn't seem like something is right...

Half of the remaining three-story building has no ceiling, which means that the entire spire structure is gone, but... No matter how you look at it, the rest of the part seems to be missing something.

What is it?

Of course, Luo Xiaotian would not let this question stay in his head until the next day, he circled around the ruins, and then, in the scattered half of the ruins, Luo Xiaotian saw what he wanted, it was a hollow chimney, and the hollow part was blackened by smoke, so it was even more wrong, obviously there were not many traces of use of the fireplace before, or... What did you miss?

Taking off the priest's uniform outside, Luo Xiaotian revealed the linen clothes that were easy to move inside, and it seemed that it was time to exercise well.

After throwing the piles of broken ingredients from the ruins one by one, until most of the stones were no longer in place, Luo Xiaotian finally found what he wanted.

A fireplace that has been blackened from long use.

Sure enough, there was something wrong with the fireplace in the room before.

Luo Xiaotian twisted the black soot in the fireplace with his hand, and couldn't help but think so.

......

Drilling into the fireplace in the room and looking up, sure enough, the chimney was fake at all, and the passage that extended upwards stopped abruptly without much distance, and Luo Xiaotian realized that it was not reasonable for the fireplace to be placed in the corner of the room, and the owner of the room would not place a fireplace here anyway, and when there was nothing left in the room, the fireplace in the corner of the room became very conspicuous.

So, why put a fake fireplace here?

The biggest possibility is that there is something hidden under or behind the fireplace, and the fireplace itself is a mechanism, as long as you can open this mechanism, you can find out what is hidden.

However, the entire fireplace was bare, even if there was something on it before, it had already been taken away by someone else, not to mention the mechanism, Luo Xiaotian couldn't even find any cracks that could be found.

Luo Xiaotian tried to push this fireplace from various directions, but even with Luo Xiaotian's strengthened strength, the fireplace still did not move, so it seemed that either it would destroy this place with absolute violence, or it would have to find some way.

In the face of empty ruins, where is the method?