Nick blinked his eyes a few times before everything came into focus. He was sat in the interrogation room. Suddenly everything that had happened came back into his memory and he shot into a standing position, which caused his head to spin.

"Woah, hey" Hank caught Nick by the arm and pushed him gently back down into the chair.

"What happened?" Nick asked, pinching the bridge of his nose to try and stop the dizziness.

"Well, you certainly got Dean angry. Did you get a good look at what kind of Wesen he was?"

"He's not- He didn't Woge, he's not Wesen" Nick managed to say, the dizziness slowly fading.

"You're joking! That guy literally ripped off those handcuffs and sent you flying across the entire length of the room"

"He definitely isn't Wesen. But I did see this weird mark on his upper right arm, it was kind of like a tattoo. He had his hand pressed against it when I was riling him up, almost as though he was in pain. And when he attacked me I could've sworn I saw it glow. Well whoever or whatever he is, there's one thing we know for certain: he's something new" Nick groaned slightly as he made to stand up. Hank tried to usher him back down but the Grimm brushed his hands away.

"It's late, we should all go home and figure this out tomorrow" Hank sighed, looking down at his watch which read 9:30 pm.

"You guys go ahead, I want to find out more about something Dean said" Nick muttered, more to himself than anyone else.

"You sure, Nick?" Monroe questioned him, his eyebrows raised slightly.

"Yeah. It's just one small thing, it shouldn't take too long. And remember to get Trubel, I know she would happily live in the trailer but she needs to sleep in an actual bed at least some of the time"

Monroe nodded, a small smile flicking across his lips as he and Hank left the precinct. Nick walked out the interrogation room, his mind now clear from the dizziness. He looked around to find not many people were here, just a few people quickly finishing off paperwork before going home. Nick sighed to himself as he made his way towards the cells. This was going to be a long night.

Sam lay across the hard ledge that was the police custody version of a bed. He stared blankly up at the ceiling. Ever since his brother's little 'fight' with the detective, they had been placed in separate cells with no way of communicating with each other and, as far as Sam knew, Cas still hadn't shown up. From what he had managed to gather from Dean's brief explanation before they had been separated, it seemed as though the detective was trying to get Dean angry. But what the detective was trying to achieve from that, Sam had no idea. Another thing that worried him was how much he knew about them and their past. Sam was certain such detail wasn't on police records, so it was safe to say this guy was no ordinary detective.

"Sam Winchester"

Sam instantly sat up, his eyes darting around the dimly lit room until they fell upon someone standing the other side of the bars next to the door. Almost instantly he knew who it was; the detective who had arrested them and interrogated Dean.

"Sam, I want to ask you something... off the record"

Sam cocked his eyebrow slightly, something was off but he stayed quiet.

"First of all, who are you?"

Despite himself, Sam smiled a little.

"You wouldn't believe me if I told you"

"Try me"

Sam's eyebrows furrowed together, this guy was no ordinary cop and this time he and Dean weren't the ones with the leverage. He didn't really have a choice but to tell him the truth. Sam sighed, bracing himself.

"Okay, you want the truth? Here's the truth. My brother and I are hunters. But we don't hunt the usual bear and deer. We hunt monsters. Ghosts, demons, vampires, werewolves. You name it; we've probably killed at least one. Angels, we've killed a lot of them too. Though some of them are on our side" Sam paused to gauge the detective reaction. To Sam's surprise, the man looked more curious than anything else. Sam sighed; it was much easier when they called him crazy and left. That meant he wouldn't have to go into detail.

"Angels?" the detective muttered, a thoughtful look on his face.

"Yeah" Sam said quietly, not sure of what else he could say.

"Why are you in Portland?" the detective asked suddenly, regaining his composure.

"My brother and I are tracking down a demon"

"A demon?" the detective's voice was full of scepticism, as Sam had expected "And what does that have to do with impersonating FBI agents?"

"That girl, Sophia, she was killed by a demon"

"How do you know?"

"Demons leave behind sulphur whenever they possess someone" Sam was surprised. Not only was he saying way more than he should be saying, but the detective still hadn't completely freaked out yet. Sam blinked up at the detective to see him staring at the cell bars thoughtfully. Without saying anything, the detective suddenly turned around and left, leaving the door swinging behind him.

Nick flopped down into his desk chair and pinched the bridge of his nose. He was close to getting to the bottom of this, he could feel it. But with everything new he learnt, it all seemed to just become more confusing. Sure, the Winchester brothers weren't your average serial killers and he himself had seen plenty of out of the ordinary things. But demons, angels, vampire, werewolves they couldn't actually exist, could they? Could the Wesen he saw on the night of Sophia's death really have been something like an angel? Was that really possible? Nick sighed, he had too many questions and no one to ask them to.

"You planning to stay here much longer?" A voice from behind him broke Nick from his thoughts. He turned around to see it was one of the detectives from another unit.

"Yeah, I think I might be"

"Well, good luck with whatever you're looking into"

Nick nodded his head politely and watched as the detective walked out the building. Now it was just him and the security guards outside. He flicked the lamp on his desk on and opened up his computer. He wanted to find out more but he didn't know where to start. Any time he needed to know anything, he went to the trailer, but that had already been proven pointless in this situation. Monroe and Rosalee had no idea either. It wasn't exactly like he could go asking the Winchester brothers, even if they did appear to be more than common criminals. The deeper into this he dug, the more questions he had and the less answers he got. Nick shook his head, as though to both try and clear his mind and to shake off some of the tiredness that was pushing down onto him. He flicked his computer screen off again, knowing that it wasn't going to get him anywhere. But just as he stood up, he heard a noise from behind him. The noise was quiet and metallic, as though something was creeping through the vent system. Nick instantly stopped in his tracks and listened. The noise came again but this time it was different, like a gust of wind. He turned himself slowly in a circle, scanning his surroundings. But everything seemed to be the same. Nick turned back to his chair and reached to pick up his jacket but suddenly a gust of wind rushed passed him. He turned around in shock and almost gasped at the sight before him. A cloud of pure black smoke hung in the air, but it appeared to move freely and have no source. It almost seemed alive. Nick stared at it, unsure of what to do. Suddenly, the smoke surged towards him and engulfed him before he could even cry out. His last thought was of pure panic before everything went black.