Disclaimer: I do not own PAW Patrol or any of its characters. I only own Blight.

Breaking into a high-security research center, as it turns out, is quite a bit more difficult than breaking out.

Blight never wanted to return to that damned place, but he knew that his sister was in there, possibly in danger.

"Someone that's always looking out for me," Beatrix's words echoed through Blight's mind, prompting a grim smile. Yeah, some protector he was, running away at the first sight of danger.

Blight shook himself out of his thoughts. There'll be time for self-pity later, Beatrix needed him.

Luckily, Blight was great at sneaking around. He lived for the moments when he manages to sneak up on Beatrix or his parents and give them a good scare. That, coupled with his newfound dexterity made him virtually invisible, provided, of course, he wasn't actually seen.

Beatrix's scent was something Blight had burned into his memories ever since their capture in fear of losing her someday. Following it lead Blight to one of the research chambers the scientists never brought him to. It's an unknown to Blight, and he hates not knowing.

Blight quietly creaks open the door, silently praying that no one was inside. Luckily, no one was standing on the other side of the door. There is, however, a human inside standing over a table of some sort.

Blight peeked around the room to check for other humans. Once it's clear that subtlety is unnecessary, he pounced at the man and knocked him unconscious.

Blight's breath was caught in his throat as he saw Beatrix laying lifelessly on the table. Her breath was weak and her eyes were barely open.

"B-Blight...?" she said weakly.

"Trix!" Blight almost shouted out loud. "Are you okay?"

Beatrix nodded weakly, but Blight knew it was a lie. Her entire body was limp, and it was clear that every word she spoke took effort. It was like she's almost de-

"Trix..." Blight shook his head clear of those thoughts. Beatrix wasn't going to die! "We need to get you out of here. Now."

"I can't," Beatrix muttered. It was like she's sleep-talking. "They i-injected something i-in me... Is this h-how you feel all the t-time?"

Blight shook his head helplessly. Of all the things he could protect his sister from, it seemed that death wasn't one of them.

"You're gonna be okay, Trix," Blight lied. She wasn't gonna be okay. Blight has seen many of Blood Rend's test subjects enter this room. None were ever seen by him again.

"Don't lie to me," Beatrix smiled weakly. "I know what's gonna happen."

"Beatrix..."

"Listen, Blight," Beatrix interrupted, her voice firm despite being so weak. "Please, I know you promised dad to protect me, but you can't blame yourself for this. You can't do everything yourself, Blight."

"Not when you're around to help me," Blight tried to hold back his tears.

"Maybe," Beatrix smiled. It was a genuine smile, a smile of acceptance. "But you still don't have to do everything alone. Make some friends, will you? Promise me."

"Beatrix..." his sister of all people knows how bad he is at socializing. He's not awkward or anything, it's just that speaking to others never came naturally to him. Every time he speaks to someone other than his family, Blight tends to adopt a mask of some kind no matter what. He never shows his vulnerabilities or his weaknesses, nor does he ever truly trust anyone, anyone but his family. "I-I promise."

"Thank you, Blight," Beatrix said peacefully. "For everything..."

Beatrix closed her eyes fully. Blight checked his sister for a pulse, but only felt the cool touch of her dead body.

Before the reality of the situation could even sink in, however, Blight felt a sharp pain on his back. The man that Blight knocked unconscious moments earlier had tried to stun Blight using a taser.

Although it didn't do any more than irritate the wolf, that was when Blight snapped.

He turned to give the human a cold stare. The man's eyes widened in shock and panic before calling for reinforcements through a walkie-talkie.

That was before Blight bit the man in the throat. It was a deep bite, but not quite deep enough to kill the man instantly.

Let him feel pain, a cold voice said in his mind. He is responsible for this.

Due to the man's earlier call, many guards burst into the room, pointing their weapons at Blight while shouting threats and insults at him.

Blight made sure every single one suffered.

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Rex never really liked night shifts. It's tiring since he doesn't get to sleep and Hugo, his owner, is never around with him during those. However, the bullmastiff still carried on with his duty restlessly. Nothing ever happens during the night shift usually anyway.

Usually.

When Rex saw the carnage upon him, he couldn't believe that someone he once knew was responsible for all this. But lo and behold, Blight, the only one besides Beatrix to have ever broken out of containment since he started working here, was standing over a trembling body that was whimpering for mercy, to which he replied by slitting their throat mercilessly.

Rex realized that he never experienced true fear, not until this very moment.

Even so, he slowly walked towards the wolf, keeping his stance steady so he's ready to defend himself, but not too tense to be misinterpreted as hostility.

"...Blight?"

The wolf turned his head and reflexively clawed at Rex's direction, Rex didn't even dodge the blow, stunned by the pure rage and fury that burned in his eyes.

Rex screamed, more in shock than pain, as Blight's claws grazed his flesh, barely missing his right eye. Some blood was shed, but Rex knew it wouldn't have any lasting effects other than a small scar.

That seemed to snap Blight out of his rage. The wolf blinked a second before regaining his senses. "Rex?! Are you okay?"

"I'm fine," Rex half-lied. The wound wasn't serious, but seeing a bunch of dead and half-dead bodies strewn across the floor made Rex by no definition 'fine'. "What are you doing?"

Blight looked around, his eyes widening in terror as he realized what he had done. "Gods," he gasped. "I did all this?"

Rex noted that there was no guilt in the wolf's eyes. "What happened? In fact, why are you even here?"

Blight's expression turned somber as he motioned for Rex to take a look at the table behind him, revealing the body of Beatrix.

"Oh, god..." Rex muttered. "Is she...?"

"Dead," Blight said emotionlessly. "Killed by the guys you work for."

"This has to be a misunderstanding," Rex shook his head. "They would never-"

"Misunderstanding?" Blight growled. "MISUNDERSTANDING?! Open your eyes, Rex. They killed her. Is it not clear enough for you? Do you need a fucking sign around her neck that says 'Blood Rend killed me' just to be sure?"

"...you didn't actually see them do it, did you?"

"No, but..." Blight groaned in frustration. "Why is it so hard for you to believe that maybe your organization is doing something wrong?!"

"Because they're my family!" Rex said. "And family. Trusts. Family."

Blight stared at Rex for a moment. His void black eyes had always unsettled the Bullmastiff. But now, those eyes were only focused on Rex's, sending shivers down his spine.

"My dad worked here, you know?" Rex said. "I followed him here all the time when I was still a pup. I wanted to make him proud. Every time I came here, these people were really nice to me, especially Hugo. They might be humans, but they're like a family to me. It's just a mistake, Blight. They won't do anything like this."

Blight stared at the Bullmastiff in disbelief, but seemed to think better of arguing.

"Fine," Blight finally said. "I'm leaving."

The wolf took his sister's corpse and carried it on his back. "You picked your side, Rex, and I'm not going to wrong you for that."

He turned to the exit and walked towards the door. Right before he left, the wolf turned around to look Rex in the eye. "But just so you know, someone's going to make you regret that choice. If not me, then them."

And with that, the gray wolf left the building, leaving behind Rex and the many humans that were either unconscious, or dead.

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Blight stared at the lump of snow in front of him, the makeshift grave he had made for Beatrix. He wished that he could've buried her back in their home, but god knows where that is relevant to his location. Maybe he could've buried her next to their parents if he had known.

Their parents. Blight felt a pang at the thought of them. Neither him nor Beatrix ever had time to mourn for them. The wolf could feel tears welling up his eyes. He lost all that he considered family that day.

Blight shook his head clear of those depressing thoughts. Crying won't accomplish anything. It's time to take action. Blood Rend messed with the wrong wolf.

Now, they're gonna PAY.

Do you think I emphasized that last word enough?

Rex, man. Blight doesn't like talking about him. Brings back bad memories.