Author's Note: Wow, I can't believe I actually wrote a fanfic! I came up with the idea for this a couple weeks ago on a whim. I just thought that the Infinity Train was a great way of getting poor Brooke the therapy she clearly needs. I love Infinity Train, and am also nostalgic for LPS: Popular (which is owned by sophiegtv, by the way. Please go check it out if you haven't already). For people reading this after it was initially published, this fanfic takes place in an alternate timeline which contradicts both canons after Book 2 of Infinity Train and episode 29 of LPS: Popular (the most recent at the time of publishing). Please note that the rating is subject to change. Also, please don't take this too seriously. I just wrote this for fun because I thought it would be a great "what if?" scenario.

Chapter One: The Plain Car

Everything seemed to be going perfectly for Brooklyn Hayes. The blonde, blue-eyed cat had successfully blackmailed her former-best-friend-turned-rival Savannah Reed into breaking up with Sage Bond, the hottest guy in school, Rachel and Alicia were back on her side, and Operation: Barbecue the Sausage was ready to go. There was only one problem.

There was a train in the way.

Brooke was on her way back from school, ready to get some rest before she could see Savvy lose the last bit of clout she had left, and the one thing that was stopping her was a freaking train. She never noticed the train tracks crossing this stretch of road before, and she couldn't just drive around it. She parked her car and got out. The train had stopped in the middle of the road, and on both sides it stretched farther than the eye could see. She quickly realized that the only thing she could do was get inside. "I can't believe I'm getting on this train," said Brooke, "but if it's what I have to do to get some rest, I guess I have no other choice". She stepped on the train, and suddenly everything went black.

When Brooke woke up, all she could see in front of her was a monitor playing a video of a white, spherical robot with short stubby legs. "Welcome aboard, new passenger!" said the robot. "I'm your conductor, One!" "One." "Once you wipe those grubby little peepers, you'll probably have a looooot of questions like 'where am I?' 'Why am I here?' 'Are snacks provided?'"

Brooke had a lot of questions about this, so she turned around to try and see her surroundings. It certainly looked normal for the standards of her world, but to anyone else, it just looked like an internet video filmed with plastic toys on someone's desk, with grass that looked like it was made out of cut up paper leaning up against a wall in the background. She decided to keep watching the video to see if she could make sense of what was going on.

"This is a train where you sort out your problems" continued the robot.

"But I don't have any problems!" whined Brooke, having ignored the part of the video where the robot said that it was pre-recorded.

"How about that number on your hand? Pretty cool and green!" the robot said cheerfully. "Every passenger has one". Brooke looked down at her paw. She was shocked to see that it now had a glowing green number on it, which said "299". "The numbers are made by the train based on your life, in order to help you have the most personalized experience we can offer!" the robot explained. "If you want to go home, get your number down to zero and poof! Away you go!" "I'm a zero." "But always remember there are lots of denizens along the way to help you on your journey. Don't be afraid to reach out!" "Unless the denizen is one of those monsters with more teeth than body." "Remember, you can't spell 'escape' with 'companionship'. Uh, 'companion-shape?' 'Companion-scape!'"

Brooke found the whole thing quite strange. "Could this get any weirder?" she asked. As if right on cue, another passenger walked right into her line of sight. This one was a human boy, somewhere in his early twenties, who wore a pair of Chuck Taylors, black pants, a white shirt with a black suit jacket over it, and a baseball cap with a Triforce symbol on it. He was caucasian, his ears were pierced, and he had blonde hair. Brooke did not know what to think of this at all. She had never seen a human being before. "So, do you live here?" asked the human. All Brooke could do was question the human.

"What the heck are you? You look like a monkey, yet you only have fur on your head and you stand up like a bird! Most of your body is covered in clothes! And your paws look like they have sausages coming out of them!"

The boy objected to her claims. "You didn't answer my question!"

"I've never seen a creature like you before. You have a lot of explaining to do!"

"So you've never seen a human before?"

"A hu-what?"

"I'm a human! Where I come from, we are pretty much the dominant species."

"You mean you guys don't just interact with different types of animals?"

"Well, it's kind of hard to describe to someone who's never even seen a human before. By the way, my name's Zachary Livingston. But you can call me Zac."

Brooke was shocked by the affection this human gave her. She did not feel like being kind to this stranger. But she figured that if she wanted to find more about what was going on here, she might as well tell him her name too. "I'm Brooklyn Hayes, but other pets call me Brooke".

"Nice to meet you, Brooklyn".

This particular act of affection crossed the line for her. "Don't call me Brooklyn! I only want people who I actually like to do that!"

"Sorry…"

Before Zac could say anything else, a tiny grey corgi puppy ran from behind his legs. Somehow Brooke was too focused on the human to notice the dog.

"Hi, I'm Oliver!", the puppy said in an adorable, childlike voice.

"Oh dog…" muttered Brooke. She did not get along with younger pets at all. To her, they were like parrots who just copied the latest trends without understanding which ones were any good. In fact, all of them just felt out of touch with reality to her.

"Sorry about that" Zac apologized. "He just gets excited when we visit new cars."

"What?"

"Oh look, I see the exit!" exclaimed Zac. There just so happened to be a door nearby. It was red with a gold, infinity-shaped knob in the center. The puppy followed Zac to the door. Brooke was so curious by this door that she couldn't help but follow them too.

Zac turned the knob and opened the door. What Brooke saw outside made her speechless. She had never seen anything like it before. The place where she woke up was actually a car on the train. Outside the train was a barren wasteland with a red sky, but the detail in both the sky and terrain was far more detailed than anything in Brooke's world. On top of that, the train she was currently on was far bigger than the train Brooke initially boarded that one fateful night. Eventually, Brooke finally asked "What is this place?". However, by the time she asked, Zac and Oliver were entering the next car.

The inside of the car was covered in a grid pattern. Touching the squares on the grid would make these cubes appear, which Zac and Oliver used to create all kinds of shapes and objects. Brooke was baffled by this car, but was curious about a specific shape that Zac made.

"What the heck is that?" asked Brooke.

"It's a Rupee from Legend of Zelda" said Zac.

"Never heard of it".

"It's my favorite video game!"

"Well, I just so happen to hate video games. Those are for nerds. You know, come to think of it, you are just a huge nerd and so is that dog. I'm getting out of here".

Brooke tried to open the door at the exit of the car, but she was unable to turn it. "That's strange" said Brooke. "Usually my paws will just stick to the doorknob so I can turn it".

Zac and Oliver laughed at Brooke. This angered her quite a bit. Never since Rachel foiled her initial plan to ruin Savvy's fur was she so angry. She started to rant. "STOP LAUGHING AT ME! I'M THE MOST POPULAR GIRL AT SCHOOL! WHAT AM I EVEN DOING ON THIS STUPID TRAIN WHERE I CAN'T EVEN OPEN DOORS!"

"What are you talking about? I thought you lived on this train like my friend Oliver." asked Zac.

Oliver explained his situation to Brooke. "I come from a place on the train called Corginia. I've looked up to King Atticus so much ever since he told us corgis about his adventure on the train to save our land. Atticus is a hero, and I want to be a hero too! So when I met Zac, I insisted on exploring the train with him".

"Well, I'm stuck on this stupid train with this stupid number on my paw." complained Brooke. She showed the boys her paw.

"You have a number too?" Zac asked. He showed Brooke his number. It was at 151, about half of Brooke's number. "That means we get to explore this train together!"

"No, it doesn't!" objected Brooke. "But since I opened the door, I guess I have no choice but to join you weirdos."

"That's the spirit!" said Zac. He opened the door so the animals could follow him.

"Why am I even on this train?" thought Brooke. The reality of her situation quickly sunk in. She was stuck on the train with two strangers who she found weird and annoying, and she didn't even know why she had a number. She knew she would be on the train for a while.