Ruby Rose peeked her head around the corner of the building that she was hiding against, her pet dog Zwei coming to her side. Two members of the White Fang had just entered one of the buildings in front of her, and she knew she had to contact the rest of her team before anything else could happen. However, communication in the abandoned city was not as good as in Vale, and Ruby needed Team RWBY (and Dr. Oobleck) by her side. Speaking to Zwei, Ruby whispered 'C'mon, we gotta get the others!'

Picking up Crescent Rose, Ruby turned back on herself, following the road she had just snuck down. The reaper soon stopped in her tracks, silver eyes stretched wide. In between her and her teammates hideout was a hulking Beowulf. Although common in the streets of Mountain Glenn, Ruby had not expected to see one right here, just behind where she had been. The Beowulf, taking advantage of her confusion and fear, batted Crescent Rose, still folded up, out of Ruby's hands, causing the girl to yelp, before smashing down two hulking fists onto the shocked crimsonette, cracking the concrete road around the site of impact. Ruby yelped out loud inadvertently, the Beowulf seemingly cackling at the young girl's vulnerability. However, before it could finish her off, Ruby heard a faint poof, and what sounded like a voice screaming 'OHHHH SHHHHHHIIIIIIITTTTTT' coming from above her.

The Beowulf turned, only for it and the prone girl below it to be smashed through the street by a falling object. The three figures plunged down a monstrous gap left by the impact, leaving only Zwei above ground, yelping down the hole at his fallen master and the two other figures beside her.

…

Ruby yelped she impacted into the ground, her aura crackling it absorbed the impact of the crash. The Beowulf wasn't as lucky. As Ruby lifter her upper body up off the ground, propping herself up on her elbows, she noticed black smoke start to wisp of the Grimm's unmoving body, a tell-tale sign that it was dead. Ruby blinked a few times, trying to find out where she was. Her mouth dropped at what she saw. A massive city, almost identical to Mountain Glenn, stretched for what seemed like miles around her. Ruby gaped for a few seconds, unable to process what she was seeing, before she was distracted by a small groan from behind her. The small reaper jumped up and turned around in a fright, thinking that a White Fang had snuck up on her while she was gawping at the city. She grunted in pain, obviously still hurting from the fall. The crimsonette looked around, searching for the source of the groan, before her silver eyes happened onto a human figure, lying on its side just behind the Beowulf. He (Ruby could clearly see it was a he) seemed the worse for the wear. His clothes were dirty, blood slightly starting to seep through from multiple cuts he had suffered. There was one especially nasty one just over his right eye that was starting to spit out blood, making Ruby quite queasy. She continued to stare at his unconscious form, wondering what she should do next. That answer soon came to her as two White Fang walked onto the roof through a door just off to the side. Thinking on her feet, Ruby grabbed the boy by his collar, and, using her semblance, dragged him behind the slowly decaying corpse of the Beowulf, hoping they hadn't spotted her.

…

Weiss Schnee was awoken by a soft nose snuffling into her cheek. 'Not now Zwei.' The heiress groaned, patting the small dog on the head. 'Weiss!' Yang Xiao Long shouted, startling the white-haired girl.

'What is it?' Weiss replied in a huff, after somehow managing to slow her heart-rate down to an acceptable level.

'Ruby's gone missing.' Blake replied.

'What!?' Weiss shrieked, causing Blake and Yang to wince a little bit. The heiress looked over to Ruby's sleeping bag, just to confirm, and found the young reaper was truly gone.

'She left about 20 minutes ago.' Yang explained as Weiss scrambled to get her things ready. 'Zwei came back only a couple minutes ago, we've been trying to wake you up ever since.' Weiss grabbed Myrtenaster, and without second thought, began to race down the stairs and back out onto the streets of Mountain Glenn, the rest of team RWBY, along with Doctor Oobleck and Zwei, following behind her.

…

Ruby breathed a sigh of relief as the two Fang shrugged and left the roof without investigating the corpse much. She looked over the corpse, making sure thy were gone. No one was there. Ruby's thoughts once again went to the boy laying unconscious next to her. How did he get here? Where was he from? By the looks of his clothes, not from anywhere close to Mountain Glenn. He wore a black shirt, with several images plastered over it. Most strikingly was a silver plant above his left breast, with the words 'All Blacks' underneath. He also wore a pair of denim jeans and a pair of dark blue shoes with white stripes on the side. Definitely not anything from anywhere close to Vale. Or Vaccuo. Or Atlas. Or Mistral. Or anywhere at all for that matter. Ruby continued to contemplate this as she tried to figure out what to do to get herself and the boy out of their situation

…

'You think Ruby caused that?' Yang asked, as WBY, Oobleck and Zwei stood over the massive hole in the ground. The looks she received from the Blake and Weiss told the blonde all that she needed to know. Yang looked back down the hole. 'Where do you think it goes?' She asked.

'I'm not…wait.' Doctor Oobleck said, a thought interrupting his train of thought.

'What is it Doctor?' Weiss asked, peering around at the Green-haired professor. 'Oh my. Of course! Of course, OF COURSE, OF COURSE! How could I be so stupid?!' Oobleck shouted.

'Dr. Oobleck, what's wrong?' Blake asked

'Mountain Glenn! Yes, an expansion of Vale that was inevitably destroyed by creatures of Grimm! Previously home to thousands of people! Working people commuting to the city, the main city! Developed a subway system to the inner city! Grimm attacks increased! Population in danger, now desperately searching for shelter! City evacuates into the metro tunnels and what do they find? The southeast quadrant of Vale is known for wild forests and deep caves!' Oobleck reeled off.

'Doctor, what are you saying?' Blake asked, multiple confused thoughts racing through the Faunus's head.

'My dear, we're not just looking for an underground crime network, we're looking for an UNDERGROUND crime network!' Oobleck shouted.

'They've been working in caves?' Yang asked.

'No, no, Mountain Glenn was Vale's first serious attempt at expansion. It worked for a short period of time, thanks to an aggressive perimeter defence, and unique transportation; the city developed an elaborate subway system to carry citizens safely from the new territory into the main Kingdom! Sadly, without the many natural barriers Vale had to protect its borders, Mountain Glenn was doomed from the start! As the end drew near, the citizens of the territory made one last attempt at survival: They took up shelter beneath the city! In massive caves that they had cleared out for the subway. And they had cut themselves off from the surface!'

'An underground village?' Weiss asked, looking around at WBY.

'In a matter of speaking, yes. A safe haven. Until... an explosion opened the mouth of another cavern, filled with subterranean Grimm. After that, the Kingdom officially sealed off the tunnels, creating the world's largest tomb. If Ruby is down there, we must find her...' Oobleck said, drawing his thermos out and changing it into it's weapon mode. WBY looked at each other, before drawing their own weapons, preparing for the battle ahead.

…

Ruby so dearly wished that she had Crescent Rose on her. Knowing the White Fang were there was so tantalising, but, without her dearest, Ruby would be an easy target. So, the crimsonette sat and waited, hoping that the rest of RWBY had noticed her disappearance. She sighed. Then jumped as something groaned behind her. She turned around, only to see the boy sitting up on his elbows, blinking as he looked around. Ruby froze, unsure of what to do at that point in time. The boy continued to look around, his soft blue eyes scanning the area, obviously trying to work out where he was. Blue soon met Silver as the boy laid eyes upon Ruby. He too froze up as he stared at Ruby. There was an awkward silence as neither person was able to speak up. The boy was the first to end the silence.

'Where…where are we?' He asked, tearing his eyes off of Ruby and past her onto the underground city that lay behind her.

'Underneath Mountain Glenn. Although I thought you might have guessed that seeing as you fell into the city…' Ruby chuckled awkwardly, trying to break the ice a little bit with the stranger.

'I…fell?' The boy said, his face twisted into a look of confusion. Ruby nodded.

'Yeah. Right on top of a Beowulf. Saved my life, actually.' Ruby admitted. The boy still looked confused. Ruby was starting to feel a bit confused herself. How could he be confused at that? Beowulfs were one of the most common forms of Grimm out there! Ruby wanted to continue contemplating the situation, but the sound of more voices approaching the two forced her to do otherwise.

'…argh. I'll do it myself.' A familiar voice grunted. Ruby froze as she recognised the voice. Unable to move, her limbs locking up, Ruby watched as Roman Torchwick made his way through the door on top of the building. The criminal mastermind's dark green eyes scoured the rooftop, before settling on the young crimsonette in front of him. 'Ah, Little Red.' Torchwick sighed. 'Of course, it would be you…'

…

Ruby grunted as she was tossed into the dirt, her hands, now bound behind her back, unable to stop her face from impacting into the dirt. She rolled onto her side, only to see the boy get a similar treatment. The crimsonette scowled as Torchwick's cane appeared underneath her chin, twisting her head up and around so that that she had to meet his gaze.

'Oh, Little Red.' Torchwick taunted, a large grin plastered on his face. 'You know, I would like to spend the whole day torturing you and your friend here, but I have a schedule to keep to! So, this is gonna have to be memorable…' The villain said with a cruel sneer. He pulled his cane out from underneath Ruby's chin and swung, thudding right into Ruby's chest. He then stepped over to the boy, swinging also into his chest. The boy yelped in pain, shrivelling into himself. Ruby growled as Torchwick once again stood over her, the end of his cane once again positioned underneath her chin. However, before the redhead could taunt her again, a low rumble emanated throughout the cavern. Torchwick looked up as an explosion ripped through one of the walls, tearing a massive hole in it.

'Go check it out.' Torchwick said to a couple of Fang standing next to him. He looked back down at Ruby, but the crimsonette could tell that the redhead's confidence had wavered a bit. Another explosion boomed through the cavern. Torchwick stepped over Ruby, walking a few paces forward in the direction of the explosions, the Fang around him doing something similar. Ruby, noticing this, started to work on her restraints, using her semblance to aid her escape. After about a minute, Ruby was able to free her hands. She propped herself up, looking around the area. They seemed to be in a trainyard of some sorts, but with only one train in. Ruby's eyes widened as she realised what was loaded onto it. A large number of Atlesian Paladins, Ruby could count about 20, were dotted along the length of the train, with more getting loaded as they spoke. Another explosion ripped through the cavern, and Ruby squinted trying to see if she could see the cause. Her silver eyes glinted as she realised who was causing it. Weiss, Blake, Yang, Oobleck and Zwei were all charging down the cave towards her position, Yang and Oobleck firing out explosive rounds from their respective weapons. Just a few feet in front of the crimsonette' s position, Torchwick started to bark out orders to the Fang, before turning back towards his two presumed captives. Ruby, halfway through untying her new companion, gave the criminal a sheepish little smile and wave, before using her semblance to finish untying the bonds on the boy, picked him up, slinging him over her shoulder with a surprising amount of strength, and dashed straight through Torchwick, throwing the criminal into the side of the train, rendering him unconscious. Ruby couldn't care less at that point. She just had to get to her teammates.

…

'So, I guess we found the Fang's hideout then!' Yang shouted as she punched the living daylights on a Fang grunt. Weiss just rolled her eyes as she dealt with a small attachment with a well-placed glyph. The heiress looked up, and her face lifted as she recognised the red blur charging towards them.

'Ruby!' Weiss yelled, trying to catch the reaper's attention. The blur seemed to slow for a moment, before diverting toward the heiress. Something crashed straight into Weiss as the blur stopped, sending both it and Weiss tumbling. Weiss ended up sprawled in a heap on her back, groaning from the collision.

'OhmygoshI'msosorryareyouok?!' Ruby babbled as she went over to her partner, apology written all over her face. Weiss grumbled a reply as she accepted Ruby's hand, the young crimsonette pulling the heiress up to her feet. Blake and Yang jogged over to where the partners stood, the rest of the Fang dealt with, at least for a short while, anyway. Blake handed Ruby Crescent Rose, still in it's folded up form.

'So, what's the plan, Rubes?' Yang asked.

'That train is loaded with paladins, at least 20.' Ruby said.

'But these lines don't lead anywhere? Why would they have loaded all of this on a train that leads nowhere?' Weiss questioned.

'I don't know, my dear.' Oobleck replied. 'Wherever it is going, however, we are going to have to stop it at all costs. We have no idea what they are capable of.'

'But how?' Blake asked. No one spoke for a moment. They were all pulled from their thoughts by a voice behind them.

'Excuse me, but can someone please tell me what the fuck is going on?'