Downtown?! Why is "Mom and Dad" there? My eyes widened in surprise, and I couldn't understand why such an unexpected result had happened.

"Anyway, let's go check it out first, the car is in hand anyway." My brother shook the car key that had been removed from the keychain at me and pulled me towards the elevator again.

I let my brother pull me, bowed my head and fell into deep thought: "Mom and Dad" are in F City, so they should have come after we left, why should they go to the library in the city center? They've got what they want, haven't they? Is there anything they don't know that they need to look up? What the hell is that thing? What do they want to do with that kind of thing?

No matter what, in short, finding the two of them first is the main thing. I followed my brother back to the first floor from the elevator and went straight to the entrance of the underground parking lot outside the mall.

"I don't know if it's close enough...... brother muttered, and then pressed the button on the car keys in his hand as he tapped the few cars left in the parking lot.

"Didi!" The nearest blue Buick had its lights on.

"Is this the one?" I hesitated, but opened the co-pilot and sat in, feeling a little guilty in my heart.

The younger brother also quickly sat in the driver's seat, inserted the car key, adjusted the seat and rearview mirror, and set the destination on the navigation on the car to the National Library of F City, then pulled the handbrake and stepped on the accelerator violently: "Let's go!" Target City Center!! Then the car sprang out like an arrow from a string.

Even in the parking lot, with this familiar thrilling speed - I don't want to describe my mood as I look at the rapid retreat on both sides of the car.

Soon it rushed onto the main road outside the mall.

"200 meters ahead, turn right and merge into Fu Rong Road." The sound of navigation sounded, and before I could remind my brother to slow down, I heard a "coax" in the engine cover, obviously my brother added the throttle again.

In this way, I could already see the shadow of the city center on the side of the road in less than twenty minutes.

"Open...... Slow...... A little ......" My voice trembled and my lips were no longer bloody.

"Oh, it's already my sister." As he spoke, the younger brother slammed the steering wheel again, drifted, and after the body spun beautifully through a spiral course, it came to a smooth stop on the side of the road.

My screams were stuck in my throat again after that night in D.

In front of the car on the right is a tall and magnificent building, and at the entrance to the building are seven glittering bronze letters: "National Library of F City".

The younger brother was already pulling out the key and taking off the safety belt with an indifferent expression: "We have to hurry, don't let 'Mom and Dad' slip away again." ”

I wanted to slap him a few big ears, but I still held back. took off the safety belt and got out of the car, and left a sentence coldly: "Next time I drive so fast, a knife will make you change from my brother to my sister, you can try whether I dare or not." ”

The younger brother had already stepped out of the car door with one foot, and when he heard this, he quickly pulled the other foot out of the car, folded his hands on his chest and stood straight by the car door with his head down.

"Let's go." I rolled my eyes at him and pulled him towards the inside of the library.

This is one of the largest libraries in the country, and it is very famous both at home and abroad. I've only seen about it in magazines and on the internet before, but I don't have any real idea. Now that I am actually standing in front of it, I realize that I really can't help but be amazed by the huge glass building in front of me.

The entire building is designed with the concept of an unfolding book, including an observation deck using the open "pages" of the "book", and a VIP reading room with a ceiling made of large glass. In the middle of the "book" is a huge inverted pyramid-shaped depression, in which is planted an incomparably huge old banyan tree, estimated to have a lifespan of more than 500 years. The foliage hovers over the glass on the surface of the "pyramid", creating a natural beauty that can shock the soul when viewed indoors. The banyan tree is even taller than the library itself, protruding from the middle and looking like a beautiful picture scroll leaping out of the book.

After entering through the entrance of the library, I asked my brother to turn on his phone again to locate it.

"I can only confirm that 'Mom and Dad' are in this building now, and I can't show where it is." The younger brother pressed the phone for a moment and then hung his hand in frustration.

"But for such a large library, there are eleven floors of the entrance alone, not counting the VIP reading room and observation deck on the top floor, when do you have to find it?" I stared wide-eyed at the ceiling in the center of the spiral staircase in the hall leading to the top of the top floor, so far away, that I felt powerless.

"There's no way, if you want to find 'Mom and Dad', you can only search layer by layer." The younger brother sighed, put away his phone, and began to resign himself to the entrance of the reading room behind the glass on the first floor.

"Wait, let's narrow down the search by excluding some unlikely floors, otherwise it's too inefficient to search directly. And 'Mom and Dad' are sure to be able to move around, so it's a waste of time if you accidentally miss it while searching. I grabbed my brother as he walked forward.

He thought about it for a moment and thought it made sense, so he obediently followed me to the schematic diagram of the floor next to the elevator.

"I don't think it's possible to have national geography on the first floor, domestic and foreign literature on the third floor, economic management on the sixth floor, language and literature on the eighth floor, and philosophy and history on the ninth floor, and what 'mom and dad' want to know should not be related to these liberal arts things...... I pondered and analyzed.

The younger brother nodded in agreement: "There are still medicine on the second floor, electronic telecommunications on the fourth floor, machinery on the fifth floor, chemical industry on the seventh floor, biological simulation on the tenth floor, and the special exhibition hall for the collection on the eleventh floor." And those VIPs upstairs and whatever. ”

"That's still a lot...... "I counted them with a headache, excluding the ones upstairs, there were still six floors for us to search one by one. The problem is that each floor is the size of a college campus...... "Can you find it all today?" I couldn't help but start to be very skeptical.

"Do you want to rule out some more? Let's try to break it down a little bit. My brother patted me on the back and encouraged me, as he looked up and scanned the remaining floors one by one.