@MIT小布 继续啊我等着看呢。。

here comes chapter 4.

Ch.4 The Library
Everlyn walked to the front of the Doctor and asked, "so where is this library? I suspect it's not on Earth?"
"No, no, no... No chance. It's not even close to Earth! It's about twenty million lightyears away."
"Geez, think about the cab fees!"
"But if it's that far, then how are we going to get there? " Charlie asked.
"Do you... have a *spaceship*?" Everlyn asked. Apparently she is pretty into fantasizing about things.
"Yes... you can say that..." the Doctor made a sad look, "but I couldn't find it. Which is why... " he took something out from his jacket, "we are gonna use **this**!" The thing in his hand was a wristband of some sort, but there were some weird buttons and a little screen on it.
"What, a wristband?" Everlyn was a bit disappointed.

"... a vortex manipulater. Got it from an old friend," the Doctor sighed at Eva's quick change of her imagination range, then put the vortex manipulator on his right hand - he had a watch on the other, "with this, we could teleport to anywhere within range."
"But is that library in range, Dr. Smith?" Charlie asked.
"I told you to call me Doctor!"
"I always name people with a proper name, but I don't think you gave me your real name, so Dr. John Smith will have to do. Sorry."
"No... no, it's alright," the Doctor sighed again, "anyways, now put your hands on the vortex manipulator." So the Clarks did, Charlie's over Eva's.

The Doctor then fiddled with the button on the little device. When he was ready, he looked up and asked, "so, you ready for some cheap teleporting slash time travelling?"
"Will it hurt?" Everlyn asked.
"Well... teleporting without a capsule is... a bit dangerous... but you won't get hurt! I promise! As long as there isn't any particle storms in the way..."
"Okay... maybe I should've thought this over first..."
A warm hand was placed over Everlyn's, it was Charlie's other hand, "do not worry. I will protect you."
Everlyn smiled, "thanks, little brother!"
"You were only about 13.76 seconds earlier..."
"Alright, " seeing a possibility of another sassing war, the Doctor interrupted the Clarks, "are you absolutely ready now?"
"Yes!" Everlyn and Charlie said simultaneously.
"Well then, ***Geronimo***!" Said the Doctor, before pressing the button, then with a blue light, the trio vanished in the dark.

### two seconds after, about 19, 967, 000 lightyears away
With a flash of blue light, the trio reappeared, but this time in a huge, empty room. The three fell into a pile of books.
Emerging from some *Harry Potters*, the Doctor made his best effort to not step on more books and got out from the pile, "*Yawzah*! That was rough! Sorry, I should've pin-pointed the location more accurately."
"Well, thanks to you for a bumpy ride!" Pushing out John Greens in order to get out, Everlyn wasn't very pleased.
"It was the stupid vortex manipulator!" He hit the poor device, which was starting to blow smoke, "back then when I had better transport, this would never happen!"
"Umm, can I have some help here?" A miffed voice came from their right, and a hand appeared out of the Hunger Games books.
The Doctor sighed, but Everlyn was instantly bursting out. She pulled Charlie out from the books, then helped him find his glasses, "well then, *hero*, you are doing a damn good job protecting me!".

"Yes, and I would like a little bit of respect please," Charlie stood up with some difficulty, then took a look at the surroundings.
The room was enormous, with billions and billions of books stacked on the shelves. Everything was made out of wood, including the walls, the shelves, and all those weird gadgets stacked on a desk in the centre of the room.
The only thing weird about the room was the colouring. The whole room was painted the colours of the rainbow. Everlyn wondered if a unicorn was going to jump out from the shelves or something, "So this is the library then, *the* library you told us about?"

"I suppose this is. I was here a long time ago, but I wasn't in this room..." the Doctor walked around and fiddled with the little gadgets on the desk, "I think this room is the Tumblr room, located at the south pole of the planet."
"Tumblr? THIS LIBRARY HAS A ROOM FOR TUMBLR?!!" Unbelievably, Eva asked.
"This library has every book that has ever published. I suppose they would categorize them."
"Well, whoever the librarians of this place are, I bloody love them."
"Dr. Smith, a question."
"It's just the Doctor, Charlie."
"So if this is the biggest library in the universe, where is everybody?"
"Well, this world only reflects what I have seen, so the library here is the same as I saw it, which makes this place..." a light went out as the Doctor paused. Then another. Then another.
"...DANGEROUS!!" The Doctor bounced up and searched for the nearest exit, "we need to get out of this room as soon as possible. And this is important: DON'T STEP ON ANY SHADOWS!!"

The Clarks looked down and avoided any shadow that they saw. But the darkness was approaching at them quickly as the lights went out one by one.
"WHAT ARE YOU DOING DOCTOR?! WE COULD REALLY HAVE SOME ESCAPING ROUTES NOW!!" Everlyn shouted desperately.
"Urgh!!!" The Doctor tried to break the wooden lock on the door, but the wooden lock just won't budge.
"Dr. Smith, I suggest you use your sonic probe!" Charlie was desperate too, but at least he was conscious.
However, the Doctor's answer wasn't that nice, "it doesn't work on wood!!!"
"WHAT, DO YOU MEAN THAT ALL-MIGHTY LITTLE SPANNER THING CAN'T DO ANYTHING TO WOODEN OBJECTS?!" Eva was not pleased after hearing the dreadful news.
"Sonic waves cannot penetrate wood. I get you, Dr. Smith." Charlie had the last little bit of calmness in him, but was soon taken away by the darkness, "what is this?!!! Please someone just get the door open!!"

"Move over, techkie!" Yelled Everlyn as she took a few steps back and stormed in. She raised her leg and kicked towards the door, almost hitting the Doctor but breaked the door wide open. She dragged the two guys, now almost stunned, through the door, slammed it shut and used a chair as a blockade.
"Phew!" The Doctor stood up and gave Eva a pat on her shoulder, "nice moves, ninja girl!"
"I took karate lessons when I was 11," Everlyn was panting, but she had a smile on her face, "never practiced after that, but hey! The body remembers!"
"I am glad that I did not have to go through that..." Thinking about what could've happened if he was home during that time, Charlie couldn't help but shiver.

"What, you didn't live with her?" The Doctor was just about to go and check surroundings but stopped and turned around, "I thought you were twins?"
"It was complicated, " Everlyn shrugged, "they say that Charlie was too smart for regular school, so they took him for special training and stuff..."
"I didn't know the topic for our conversation had shifted onto me?" Charlie stopped the conversation abruptly, unlike his usual self.
"Oh, right, right... gotta check some defences..." the Doctor didn't say one more word, but he did look at the boy with some suspect. He looked up: there was a window on the top of the dome-shaped roof; through there, he could see the sun slowly setting. *We are almost out of time*, he thought.

Everlyn didn't want to follow up either. Her brother had never talked about his life at the institute, but it wasn't a good time to ask. Instead, she focused on another aspect, "But Doctor, what was happening just now? Why did we have to run?"
"There were some things that were chasing us. In the shadows..."
The sudden stop grabbed Everlyn's attention, "what is it?" Charlie pointed her to the ground.
On the floor, the shadows that were cast by the shelves are advancing onto them, like a swarm of shark closing in on their feast.

"Quick! Under the window!" The Doctor yelled as he pulled his sonic screwdriver and buzzed at the shadows, "this will buy us some time. Now, have you got a torch?"
"I've got a small one, if it will help!" Everlyn reached into her jacket and got a little flashlight. She threw it at the Doctor, who caught it then started to sonic it, "I am boosting its power! Now get under the window and ***stay out of each other's shadow!!!"***
The twins did so. Charlie looked around and found something useful, "there are some emergency lights over there!"
"Thanks, little cherry!!" The Doctor set the torch in his hand onto the ground, the light pointing out, "they are the Vashta Nerada. They live in the shadows and they eat you alive!!" He ran over to the emergency lights, boosted their power and set them on the ground the same wat he did with the little torch.

When all this was done, the shadows had stopped advancing in. The Doctor sat down on the floor, finally relaxing for a bit, "phew! That was close!"
But not a single moment later, the other door made a very loud noise. The trio turned to look, only to find two other people, also barging in. One of them was a man in a blue suit with a big brown overcoat, and the other was a middle-aged ginger woman wearing earth-looking cloth. They were rather surprised to see the trio.
The Doctor stood up with a big smile on his face, "now this, is, absolutely brilliant."
TBC

-----End of Ch.4-----