002 gave up knocking on the door and walked in the direction of his left, there were no other rooms along the way, dim lights and light footsteps passing through the empty hallway. Pen & Fun & Pavilion www.biquge.info

Soon, 002 came to the end of the corridor, an electronic door blocked the way, there was a password entry and ID card slot next to the door, 002 entered a few numbers at random, pressed the confirmation button, and the prompt sound sounded quickly.

"The password is incorrect, please present your ID card and enter the 8-digit unlock code."

"This posture, it looks like it's going to play decryption, hey! It's troublesome. 002 muttered to himself as he walked to the other side of the hallway.

As on the left side of the hallway, there are no extra rooms on the road, and at the end is a rusty iron door, which creaks when you turn the doorknob gently, and the view is filled by four wooden doors on the left and right sides and a staircase leading to the lower end not far away.

002 observes 4 doors, the doors are printed with spades, hearts, grass flowers, and squares in turn, and when he turns the doorknob, all 4 doors are locked and cannot be opened.

002 was a little helpless, this secret room became more and more complicated, looked at the dim unknown space under the stairs, took a few deep breaths, and walked downstairs step by step with the handle of the stairs, boom... Boom... The thump echoed dozens of times before it stopped.

002 looked around, there was not much space downstairs, an old lamp emitted dim light, a wooden coffee table and a full brown sofa in the center, and a room in the front left and a room in the back right, separated from the hall by a door.

"This time, let's look around first, maybe the door won't open again." 002 thought to himself and began to act.

Through the dim light, searching for clues in the room, from the sofa to the bottom of the sofa, from all corners of the room to the coffee table, except for an envelope in the corner of the hall that read, "Three thousand favors in one, the four strings sound like cracked silk, seven lamps can wake up a thousand days to sleep, and the five clouds are deep in color." Nothing else.

Suddenly, 002 found that there was a drawer at the base of the coffee table, and after opening it, there was a small locked box inside, and three rows of numbers were printed on the box, from top to bottom, 1 to 3, 4 to 6, 7 to 9, a total of 9 numbers.

"Whew~" 002 sighed, looked at the lock on the box, it was a three-position combination lock, tried his number 002, and found that it couldn't be opened.

002 scratched his shaggy hair, as if to remove superfluous thoughts from his head, stood still for half a minute, and walked to the room in front of him, the door opened smoothly, the room was not large, only a desk, a small bed, and two attached bedside tables.

002 finds the key in the shape of a heart in the drawer of his desk, and finds a flashlight and a battery corresponding to his model in the bedside table.

Get out of the room, walk to the right rear door, and turn the doorknob.

"Rub, I really can't open it, it seems that I can only open the door upstairs first."

Came upstairs, picked up the key of hearts to open the corresponding door, and suddenly a crossbow arrow appeared in front of him, 002 secretly screamed in his heart, only to hear a whoosh, the arrow shot out, and in a few tenths of a second, it was inserted into the wall and made a crisp sound.

At this moment, he instinctively threw himself on the ground on the left side to escape the catastrophe, but he was still startled by this sudden "surprise".

He cursed: "This broken room almost killed Lao Tzu, and when I escaped, I had to hang the organizer and shoot them into little hedgehogs with crossbow arrows." ”

002 settled down, observed the furnishings of the room, and felt that there was nothing dangerous anymore, so he slowly got up and began to search the room of the Door of Hearts.

The room consists of a bookcase on the left-hand side, a dining table in front of it, and a desk on the right-hand side, the crossbow bolt just now is placed on the dining table, and the trigger mechanism is connected to the crossbow bolt after extending from the doorknob to the ground, and there are no spare arrows nearby, 002 wants to take the crossbow arrow down, but finds that the crossbow arrow is welded to the dining table, and no matter how hard he tries, it can't move.

There is a safe in the bookcase, a 4-digit password, I thought about the information related to the password for a long time, and searched carefully in the room, and suddenly remembered the poem in the letter, and then looked closely, it turned out to be a Tibetan poem, 3475, 3547... After several attempts, I finally opened the safe with 7354.

There was an ID card in the safe, and a key was found in the desk drawer, and the key did not have one of the other three patterns, presumably from the room below.

002 walked downstairs to the room, opened the door, and with the "surprise" just now, 002 became cautious, first opened a crack in the door, and observed through the crack in the door for a while before opening the door and entering.

Fortunately, there was no danger, and after searching, I got the key of spades and a card with three sets of numbers written on it: "3214789, 12369874, and 123456147".

"It's a strange number, no matter, let's go to the room of spades first!"

Coming to the door of the room of spades, 002 didn't dare to slack off, still carefully observed, and entered the room after confirming safety, the room was similar to the room of hearts, except for a large vase placed on the left hand, and got the key to the cube and a card, which said "olsi".

The four letters still confuse 002, and he picked up the key and walked into the block room, which found no useful clues.

002 sorted out his thoughts and found that the only clues left were the small box with three combination locks, 4 letters, and 3 sets of numbers.

"Wait a minute, numbers!" The corners of 002's mouth rose at this time, and he quickly ran downstairs and picked up the small box.

"I was right, the original 3 sets of numbers represent the connection in the number nine squares, the three sets of numbers represent the three letters of CDF, and the password is 346."

Enter the code, and with a click, the lock opens, and there is a grass flower key inside.

002 came to the grass flower room, there was nothing in the room except a large box, the box was locked by a 4-digit combination lock, and a note was pasted on it, which said, "Looking at the big world upside down, maybe there will be something different." ”

Looking at the last clue "olsi" in his hand and the vague hint text, 002 chose to do a handstand.

"Oh, what's so wonderful about looking at the world upside down? Hey, the letters feel weird. ”

002 got up and read the note a few more times.

"I see, capitalize olsi as OLSI, and look at it in reverse, hehe, 1570."

002's mood was a little excited: "Damn, I've been holding it for so long, and I'm finally able to go out, haha." ”

Enter the password and open the large box.