Quick as lightning, Eri grabbed her knife, normally and held it at Castiel.
"Who are you?" She yelled, "How did you get in here?"
"Eri it's ok," Sam said, lowering her arm, "This is Castiel. This is the angel Dean was talking about earlier."
"Oh right," She smiled, "The angel who's been flipping Heaven up and over, inside and out."
"I don't understand what that means," Castiel said in his typical stoic way.
"It doesn't matter," Sam shook his head, "What are you doing here Cas?"
"We need to talk. Where is Dean?"
"He crashed," Sam blinked, "Cas what is going on?"
Sam knew that Cas had killed Samandrial, he had seen the blood leak out of his eye. Sam had been gnawing on the fear that Cas was not truly Cas for some time now. Now that he was here, Sam wondered if he could trust him.
"There is demon activity south of here," He explained, "But it is beyond a normal demon. I fear that with all that is happening, some demons may have escaped. Some of them who have a very deep hatred for not just humans but for hunters."
"Meaning?" Sam asked, afraid of what the angel meant.
"Meaning they are coming for you and your brother."
Sam blinked fast, unable to comprehend Cas's tone as he simply laid out the truth.
"It would seem that the knife you possessed, the one to kill demons is not truly enough Sam," Cas said harshly, "I saw the demon that is responsible for your father's death. I thought you would like to know."
"Azazel?" Sam choked out.
"Him and others," Cas said, clearly unbothered by Sam's sudden shakes.
"Don't tell me," Sam closed his eyes, "That Luci-"
"Lucifer is still in his cage." Cas confirmed, "However you and your bother have angered many demons. They are coming for you."
"If the knife doesn't kill them then what does it do?" Eri asked.
"The demon killing knife is as new to me as it is to you," Cas explained, "I personally had not seen such a thing before in my lifetime."
"Well that's just awesome," Eri groaned, "Allow me to call up my teams. We'll march down there and we can least exorcise a demon or two. It won't kill them, but it'll take them forever to crawl back out. And we need time to make a real plan."
"I have to find Dean," Sam gasped, coming out of his shock.
"Go," Eri nodded to me, "Can you tell me where the demons came from? What city? County? Anything?"
"Of course," Cas said as Sam bolted out of the office.
Sam lunged over to the railing, gripping the bar tight and leaning over the edge.
He felt like he was going to be sick.
He was back.
Azazel was back.
Sam closed his eyes, trying to breathe, he couldn't panic, he couldn't freak out.
But he couldn't help but remember all the horrible demons that had come for him and his brother.
Azazel, who had killed their mother and started this mess.
Alistair, who had tortured Dean and forced him to torture souls in Hell.
Lilith, who had laughed as Dean had been ripped to shreds by hell hounds.
Ruby, who had deceived him and laughed as Lucifer came free.
Sam could hardly breathe.
All the work they had done, gone.
Snap, just in a poof, everything they had worked so hard towards was pointless.
He looked up as the world slowly tuned out. It was as if a fog trapped him in his own fear as he heard a distant call of the speakers and saw people running up and down the stairs.
These poor people.
All of them.
They were going after demons.
Demons that he had failed to kill.
How many people had he let die when he released Lucifer?
How many had he let die when he ran off with Amelia and her dog?
He closed his eyes as the muted roars of the commotion grew louder.
"Sam! Sam!" He heard a rough voice, full of panic and adoration break the fog.
He looked up as Dean took the stairs two at a time and raced to his side.
"Sammy, I'm here." Dean said, holding his brother's arms, "I'm here, you're ok."
Sam shook his head, noticing the alarm that blared as hunters ran around the bunker.
"Have you?" Sam asked, trying to right himself, "Have you talked to Cas?"
"Cas?" Dean asked just as the angel and Eri came out of her office.
"Dean," Cas said simply.
"What?" Dean demanded, keeping one hand on Sam, "What's going on?"
"Azazel has returned. As have others," Cas stated.
"What?" Dean asked, stumbling back at the news, "Yellow Eyes? How? What others?"
Sam watched as Castiel explained that a few towns away, an explosion had happened and the earth had caved into a sinkhole and that several dozen demons had escaped and then the sinkhole had closed up as if nothing had ever happened.
"I've sent ahead scouts," Eri said, "I've also called back other hunters. When we know how many there are, we'll go in and sweep the whole town. We can send them back to hell."
"If the knife didn't kill these bastards," Dean growled, "What will? I don't want them exorcised. I want them DEAD!"
"Calm down Dean," Eri growled, "We can't kill them if we don't know how. Your knife didn't do it."
"You're sure it was him?" Dean asked Cas.
"Very much so," Cas said and frowned, "I am sorry for bringing this to you Dean. I don't mean to hurt you."
Sam watched as Dean narrowed his eyes as Cas. They were still suspicious, but at the time, they had to trust Cas was right.
"We're going," Dean said.
"What?" Eri asked, "Dean the scouts have left, they'll be back. We can wait."
"No," Sam shook his head, "Not really, I'm sorry Eri."
Dan and Sam straightened their backs, no longer winded by the news. Sam exchanged a look with Dean. He could see a cold quiet fury swimming in his eyes. The ones that made even the most terrifying creatures run screaming. He understood Dean's thoughts, the plans and ideas and everything they had done for over 8 years. For themselves, their dad and most importantly for their mother.
"Sam is right," Dean said, his tone gruff and unforgiving, "This is a family matter."