Grandpa Zhang and Grandma Zhang said in unison, "Ask, tell you everything we know." ”

Gu Yanan: "From noon yesterday to the early hours of this morning, has anyone been to your jewelry store?" ”

Grandpa Zhang: "Yesterday afternoon, I was mainly looking at the store, and there were a total of five customers, an old couple, a young man, and a young couple. ”

Gu Yanan: "Have they ever gone up to the living room on the second floor?" ”

Grandpa Zhang: "No, the old couple is our acquaintance, come to get a customized commemorative gift for the 40th wedding anniversary, the young man came in and walked around and left, the young couple bought a pair of diamond rings in the store, and also left, the guests are all received by me, they are all on the first floor to see the jewelry and pay, I have not been to the second floor, nor have I borrowed the toilet on the second floor, these are all I saw with my own eyes, there will be no mistakes." ”

Excluding outsiders, that is the insiders of the jewelry store, Zhang Feng and Zhang Feng's wife didn't take it, Grandpa Zhang and Grandma Zhang didn't take it if they knew how powerful things were, and the rest was the little grandson of the Zhang family.

Gu Yanan looked at the little boy lying on the hospital bed in the ward, and said to Grandpa Zhang and Grandma Zhang standing in the corridor, "It seems that I have to ask the child well." ”

In the ward, next to the bedside of the boy Zhang Xiaofeng.

Gu Yanan showed a kind smile that was unique to the child, and asked, "Xiaofeng, my sister asked you something, have you ever seen a small bead in your father's bedside table box?" ”

The little boy's eyes flickered, staring at the sheets and not daring to look up.

Grandma Zhang was very impatient and said loudly to the little boy, "Xiaofeng, if you take it, tell the doctor's sister, don't lie." ”

When his grandmother said this, the little boy looked even more nervous.

Gu Yanan saw that something was wrong, turned his head and said to Grandpa Zhang and Grandma Zhang, who were standing behind him, "Can you go out first?" I'd like to talk to Xiaofeng alone. ”

Grandpa Zhang and Grandma Zhang followed the doctor's instructions out of the ward.

Gu Yanan smiled and said to the little boy: "Xiaofeng, you can tell your sister now, my sister won't tell your parents, grandparents." ”

The little boy looked up, "You promise?" ”

"Well, my sister promises that what Xiaofeng said to her sister today, my sister will not tell anyone."

The little boy finally began to tell what had happened, "After coming home from kindergarten yesterday afternoon, Mom and Dad were not at home, Grandma was cooking, Grandpa was looking at the store, I felt bored and went to Mom and Dad's room, and found a box in the drawer of the bedside table, and there was a bead in the box, like a glass marble, I thought it was fun, so I took it out and played." ”

Gu Yanan: "Where is that bead now?" ”

"I played for a while, and I didn't think it was fun, so I threw it away."

"Where to throw it?"

"Throw it in a flower bed."

"Where's that flower bed?"

"In the big square at the east end of my house, there are a lot of people who go there to exercise and children to play in the evening."

Gu Yanan wanted to further determine the location of the flower bed in the square, and asked, "Xiaofeng, can you describe the location of that flower bed?" For example, what is there around it that is obvious? ”

"There was a slide next to the flower bed, and there would be a lot of children on it, so I just stood on the top of the slide and threw marbles into the flower bed."

Gu Yanan tucked the corner of the quilt for the little boy and said, "Xiaofeng has helped my sister a lot, you have a good rest, and my sister will come to see you another day." ”

Gu Yanan walked out of the ward, trotted out of the hospital, and at the same time called Lu Li and Zhou Jie to inform him, "There is a clue to the approximate location of the radioactive source, in a large square east of Zhang Feng's jewelry store, you immediately lead people to isolate the entire square, remember to wear protective clothing, bring detectors and radioactive source containers." ”

——

The main square to the east of Zhang Feng's jewelry store.

CDC staff have set up a cordon around the square and erected anti-radiation signs.

There was a large crowd of onlookers outside the cordon.

Although the radiation protection markings were obvious, curiosity outweighed danger and the crowd gathered outside the cordon and refused to disperse.

Wang Xiaoxiao was explaining to the crowd of onlookers that there was a danger of radiation and that they should stay away as much as possible, and slowly, the crowd of onlookers was dispersed.

Because it is built next to a commercial street and there are several residential areas nearby, this square is very large, in addition to a lot of fitness equipment and green vegetation, there are some children's entertainment facilities.

Gu Yanan followed what Zhang Xiaofeng said and found the children's slide in the square.

Sure enough, there are several flower beds around the slide, which are full of moon flowers.

Gu Yanan personally went into battle, wearing protective clothing, and holding a radiographic detection radiation detector to inspect inch by inch.

As soon as the radiation detector is turned on, it will sound an alarm, indicating that there is excessive radiation around, and the closer to the radioactive source, the closer the alarm sound of the detector will be.

Finally, Gu Yanan found a small round ball with a metallic sheen under a moon tree in the flower bed.

The radiation detector makes a screeching sound next to the ball, indicating that the source of the radiation is being found.

Gu Yanan put the ball into the lead box he brought, sealed it, the radiation was isolated, and the alarm sound of the radiation detector disappeared.

Everyone present breathed a sigh of relief that the source had finally been found.

After the radioactive source is brought back to the CDC, it is properly stored and placed in a warehouse dedicated to the preservation of radioactive materials.

The next question to figure out is where exactly did this radioactive source come from?

——

Lianhai Center for Disease Control and Prevention, Emergency Office.

After placing the recovered radioactive source properly, Gu Yanan returned to the emergency office and called Nan Hanfei.

Nan Hanfei: "We have not received any reports of the loss of radioactive sources. ”

Gu Yanan thought to himself, the lost radioactive sources have been found, why hasn't the unit that lost the radioactive source moved? It's too slow.

Gu Yanan called the Environmental Protection Bureau, which oversees the preservation of radioactive sources, and got the result that because there are so many units with radioactive sources, it will take several days to report the results of the inspections one by one.

This result was within Gu Yanan's expected range, and there was not much reaction, and the follow-up work was to find people who had been in contact with radioactive sources and let them go to the hospital for treatment as soon as possible.

Gu Yanan contacted the people of the district disease control and asked them to help make a count of the people who had been to the east square of Zhang Feng's jewelry store in the past dozens of hours, so that they could be notified to go to the hospital for treatment.

After hanging up the phone, Gu Yanan closed his eyes and read his temples, trying to empty his head and rest.

Wang Xiaoxiao leaned over to Gu Yanan's desk and said: "Sister Yanan, it only took two days for us to find the radiation source from the discovery of radiation patients this time, and the speed is already quite fast. ”