After breakfast, everyone still decided to go their separate ways.

Shirakawa Kiyoshi and Mary come to Kevin's room to look for clues, and the rest of the group splits into several groups to try to search for his whereabouts inside and outside the annex.

Kevin's room was almost the same as the one they had seen the day before yesterday, the light was still on on the desk in the corner, and Bai Heqing walked over, and there was a crumpled paper pressed by a pen on the desk.

He picked it up and looked at it, and the paper was extremely scribbled graffiti, and the whole looked like the upside-down character "mountain" in Chinese.

Although it was somewhat abstract, he could barely tell that the paper was drawing the floor plan of the annex.

The graffiti has been crossed in many places, except for the circle on the far right.

Looking at this somewhat inexplicable graffiti, Bai Heqing suddenly remembered that Mei Ling had mentioned to him before that in the middle of the night a few days ago, she would sometimes see Kevin wandering around the annex alone.

Could it be that the place marked on this graffiti was investigated by Kevin?

[The first floor of the annex.] 】

This word suddenly flashed through Bai Heqing's mind.

The rooms on the second and third floors of this annex are completely open, and if there are any secrets in these rooms, everyone will find out long ago, and it is impossible to wait for Kevin to investigate them one by one.

There is only the first floor of the annex that sank in the water.

What Mei Ling saw before was Kevin who went to the first floor of the annex alone in the middle of the night to investigate.

It's just that...... That guy is so good at water?

Behind Bai Heqing, Mary looked down at the oxygen cylinder placed against the wall, squatted down, and glanced at the meter above.

[It's empty.] 】

No, when she and Bai Heqing came to this room the night before, the oxygen cylinder was not empty.

Puzzled, she picked up the oxygen cylinder and reached out to touch the bottom of the bottle.

[The bottom of the bottle is still wet, at least for a few hours, someone must have used it.] 】

"Baihe, this oxygen cylinder is empty." Mary turned around and gestured to Bai Heqing for the oxygen cylinder in her hand.

"I forgot about it......" Bai Heqing glanced back and nodded slightly.

"This oxygen cylinder is indeed the best evidence to prove that Kevin has been investigating on the first floor of the annex in the middle of the night for the past few days."

"Do you think that inheritance was hidden on the first floor of the annex by Eijiro Tone?" Mary asked.

"I'm not sure, but judging from the fact that Eijiro Tone bought this annex fifteen years ago and immediately renovated it, even if there is no inheritance on the first floor of the annex, there must be clues related to the whereabouts of the inheritance.

And Kevin has probably found this clue in his secret investigation in the past few days. ”

"What are you going to do after that? Could it be that we have to go into the water to see for ourselves? ”

"It doesn't have to be."

Bai Heqing shook his head, and the two walked out of the room together.

"Let's not say that the injury on my shoulder is not healed, in fact, my water nature is not good, and it is easy to become a water ghost after going down......

Of course, it's not that there is no way at all, I think that fifteen years ago, the stagnant water in this annex was definitely not scooped in by the construction team at that time.

There must be some kind of device on this island that can pump in the seawater from outside the island and keep the water level inside the annex unchanged at all times.

In that case, this device will definitely be able to pump out the seawater again, and if we find this device, we will be able to go to the first floor of the annex. ”

"As for those who might know where this device is......"

Mary touched her chin and thought for a moment, then snapped her fingers, looked at Bai Heqing, and said with a smile: "That must be the person who was already in this annex fifteen years ago!" ”

Deciding on their next move, the two of them left Kevin's room and headed straight to the annex's kitchen.

There, the two of them saw Akira Kurahashimoto, an old housekeeper who had already begun to prepare for lunch, and Sumiko Oiri, a housewife.

"Good morning, Steward Kurahashi." Bai Heqing spoke first and said hello.

"It's two?"

Akira Kurahashimoto, who was washing dishes, glanced back, and a kind smile suddenly appeared on his face.

"Have you found Mr. Kevin? Or are you two hungry? ”

"I've found it, we came here to ask, where is the device to control the water level in this annex?" Bai Heqing asked.

"A device to control the water level? The two of you must have seen it before, and it was the water tower behind the annex.

The water level in the annex has always been controlled by the machines in the Water Tower, but ......"

Speaking of this, Kurahashi Motoaki sighed softly.

"Only Mr. Eijiro knows how to control the Water Tower, and even I don't know...... But if you really want to know, you can go to Mr. Eijiro's room and look for it, I think there may be a record there. ”

“……”

In this way, after getting the room key to Eijiro Tone's bedroom from Akira Kurahashimoto, Shirakawa Kiyoshi and Mary hurried over together.

Unlike the guest rooms where everyone else lives, Eijiro Tone's room is more extravagantly decorated, but neither of them is in the mood to appreciate it now.

After entering the room, the two tacitly divided the labor, starting from the left and right sides of the room to search.

Whether it is Shirakawa Kiyoshi as a police officer or Mary as an agent, they are extremely skilled in this kind of behavior, and the two of them turned over every corner of Eijiro Tone's bedroom at a very fast speed.

In the end, only Kiyoshi Shirakawa found a handwritten timetable in a book that Eijiro Tone stacked on the bedside table.

"It's ...... Timetable? Mary leaned over and looked at her, looking puzzled.

In this timetable, the capitals of several important countries in the world are written line by line, and the different hours are written at the end of it.

"No, it's supposed to be a jet lag watch."

Looking at the watch in his hand, Bai Heqing's eyebrows furrowed slightly.

"If I'm not mistaken, the times marked at the back correspond to the time difference between the capitals of these countries and Tokyo."

On this time difference table, the top is the zero hour time in Tokyo, and the bottom is the time in London, England.

Looking carefully at the capitals and time differences on this watch, Shirakawa Kiyoshi suddenly remembered a message that Kurahashi had inadvertently revealed to him and Mary the night before.

Eijiro Tone had a hobby of collecting table clocks from other countries during his lifetime, so many rooms in the annex were filled with table clocks made from all over the world, and just adjusting these clocks every day took up a lot of time for Akira Hashimoto......

"I see......"

A guess popped up in his mind, and Shirakawa turned to look at Mary and asked, "What time is it?" ”

"It's almost twelve o'clock at noon, what's wrong?" Mary asked curiously, glancing at the time on her watch.

"Time is running out, come on, I know how to activate that water tower."

With that, Bai Heqing quickly left the room with Mary.

(﹃)

(End of chapter)