Han Xingqian narrowed his eyes: "Wait a minute, there seems to be a painting stuck to the bottom of the bed."

Because the camera was installed under the bed, the picture was a little dim. After careful identification, the two determined that it was an enlarged playing card, and it was the kid in the joker.

The picture in Ward 3 is Ying and Han Xingqian around the computer.

Ying thought for a while: "So we are in Ward 3?"

Ward No. 4 has a relatively high viewing angle. There are clownfish and several doctors from the Alliance Medical Association. There is also a computer in front of the hospital bed. Due to the different viewing angles, it can be vaguely recognized that their second and third pictures are under the bed of the ward. painting, but it is completely unclear what is on the painting.

Ying thought for a while, then lay down on the ground and tried hard to see if there was anything stuck under the bed in her room.

Doctor Han asked, "Is there any?"

Ying replied: "Yes, yes, yes! But it's too dark inside, I can't see what is being painted, and there are iron bars welded between the legs of the bed, so I can't climb in."

Han Xingqian calmly watched the four surveillance screens, and suddenly saw the doctors in Ward 4 gathered together in front of the computer in his room.

Immediately afterward, the two special trainees in Ward 2 also apparently noticed the surveillance on the computer, and they could see their feet gathered in front of the computer desk through the cracks in the bed.

"It seems that everyone has noticed the computer monitoring." Han Xingqian thought for a while, "Don't move."

Yingying was stunned for a while, and the hand looking for the drawer stopped.

Han Xingqian stared at the surveillance screen of Ward 4 and walked back and forth around the hospital bed.

It can be vaguely seen from the monitoring screen that although the third screen on the computer in Ward 4 shows a very blurred bottom of the bed, the feet of people walking beside the bed can be identified. So Han Xingqian speculated that the four pictures in each ward were arranged according to the four wards 1, 2, 3, and 4, which means that people in ward 4 could clearly see the patterns at the bottom of beds 2 and 3.

It is reasonable to speculate that each ward can see the pattern under the bed of the ward with the serial number in front of it, but except for the bottom of the bed in Ward 1, because they are in Ward 3 and Ward 4 displayed on the monitor, they cannot see it. Under the bed in Ward 1.

However, this conjecture is of little use.

Ying asked carefully: "Doctor Han, can I speak?"

Han Xingqian looked at him, Ying was holding a box of playing cards from the drawer of the computer desk.

"It seems to be empty inside?" Ying said to himself, and opened the poker box. There were only two jokers in it - a big ghost card and a small ghost card.

The two cards are not as thin as regular playing cards, they are about as thick as an ID card.

"Ah, it's an access control card." Ying took the playing card to the card slot of the door lock and compared it, the size was just right, but she didn't know which one to insert, "Is it a big ghost or a little ghost..."

"Don't mess with it." Han Xingqian picked up the poker box and looked at it. The decoration of the box was very simple, with a smiling clown on one side and a death clown with eyes turned into two crosses on the other side. The clown was covered by a diamond-shaped skull symbol. .

As a doctor, Han Xingqian is very familiar with this symbol, which stands for "poisonous gas".

Han Xingqian put down the playing card box and suddenly noticed the mouse pad.

The mouse pad is also divided into four grids, and two big ghost cards and two small ghost cards are drawn in cross-displacement.

Han Xingqian opened the notepad and wrote two lines with a pen: "It is reasonable to speculate that the pattern on the bottom of the bed in Ward 3 where we are located is the pattern of the access card, and in two of the four wards, the pattern on the bottom of the bed in two wards is a ghost. , the other two are little ghosts, if the wrong card is inserted, poison gas will be released in the room and we will be poisoned to death."

Firefly said weakly: "Isn't that there is still a 50% chance of being right... What if I get it right..."

Han Xingqian laughed angrily: "I want to record this for you, Instructor Bai."

Not knowing the exact location of the camera, he picked up the mouse pad and playing card box, held them up and walked around the room, then dipped them under the bed and shook them.

It can be seen from the surveillance that the people in the other rooms were attracted by his actions. Several people in Ward 4 began to rummage through the drawers, and Ward 2 could also see from the bed crevices that they were moving and began to search. thing.

Soon people in other wards also found these things, and tried to use the camera to indicate that they had found them.

Ying looked puzzled: "What is Doctor Han doing?"

Han Xingqian: "I have to make sure that everyone knows that everyone already knows the rules."

Firefly: "???? Dolls are prohibited."

Han Xingqian was not in a hurry. He sat on the hospital bed and closed his eyes to rest. After waiting for about fifteen minutes, he suddenly opened his eyes and looked at the monitor. There was almost no change in the picture, so he said softly, "We are a big ghost."

Ying was stunned, holding a big ghost access card, hesitantly dare not insert it.

"Really...are you sure...I..."

The micro communicator in the ear suddenly made a weak electric sound. The communicator has been disabled since it came in, and finally there was a sign of the signal being restored. Firefly jumped up happily, and then calmed down to adjust the channel.

"Hello? Is there any idiot kid who can hear me?"

Bai Chunian's leisurely voice came into his ears, Ying's eyes became wet all of a sudden, and he choked and replied, "Instructor, I, I can hear, I'm Ying..."

Bai Chunian tsk tsk to comfort: "Don't cry, I'm here. I strengthened the signal, but I can only contact you at the moment. How is the situation now?"

Ying dragged a cry to Bai Chunian about the current situation, including the details of surveillance and ghost card access cards.

Bai Chunian hummed: "I've been waiting for fifteen minutes, of course I'm playing a big trick, idiot."

Ying was stunned and looked at Doctor Han in disbelief. Han Xingqian shrugged lightly and lifted the lockbox on the ground: "Get ready to go."

The instructor's words were unconditionally trusted, and she picked up the big ghost card and inserted it into the door lock. The door lock lights up green and opens automatically.

"Why, why?" Ying asked in a daze.