A few days passed and Cas didn't let Dean out of his sight. Any moment he was gone, was a moment another angel was forced to watch the headstrong, grumpy older Winchester. Dean however was too preoccupied to notice. He couldn't help thinking about all those dead people stuck between Heaven and Earth with nowhere to go. He worried as he so often did when his little brother was involved. Was Sam in pain? Was he happy? Bored? Or had he just vanished leaving only a room in the bunker as verification of his existence? Cas detected Dean's unusually disturbed and distracted manners and did his best to put him back on track. He even dragged him along when some sort of angel eruption happened at a Colonel Scoops ice cream shop. Dean stared blankly at the empty eye sockets of the victim. Cas did his best to focus on the case but his eyes kept darting to Dean. He wondered what was on the other man's mind.

"Cas," it seemed he was about to figure it out. He stood up and their eyes met. "What happens to all the souls now that Heaven's closed up?" Cas stared at Dean for a moment unsure how to respond. He hadn't even thought about the souls. He'd been so focused on the lost angels wandering earth but never the souls. Where were they now? Where was Sam now?

"I don't know," he finally answered. Dean nodded.

"That's what I thought." He turned back to the body and Cas turned back to the crime scene. He did his best to get back to work but he couldn't take his mind off Dean's question.

When they finally finished examining everything, Cas dragged Dean back to HQ where Hannah informed them of an angel gone missing.

"Do you think he's the mole? The one who killed the prisoner?" asked Dean, finally a bit interested in something.

"Well, who else?" asked Hannah, "We searched the grounds but he's vanished."

"What was his vessel's name?" Dean asked sitting down at an empty computer. Cas glanced from Hannah to Dean and back again, confused with his friend's sudden mood change. Hannah didn't seem to have any answers except for the ones Dean was looking for.

"Sean Flynn from Omaha." As Dean searched for anything on Sean or his possessing angel, another angel pulled up a video from a phone of one of the people that had been in the explosion at the ice cream shop.

Dean stood up and joined the angels gathered around the screen to watch. The video showed an angel approach a booth and rip open his shirt. On his chest was carved some sort of sigil which, when he stabbed himself, exploded in bright light blowing the whole place to bits. As he pointed the angel blade toward his chest he spoke;

"I do this for Castiel!" Then with a final explosion, the video ended.

"What the hell was that?" Dean asked. His lethargic attitude had quickly changed after Cas had been unable to answer his question. It seemed there was no use worrying about Sam so his next option was to find something else to occupy his mind. This seemed like a pretty good option. It at least gave him a reason to be pissed at Cas.

"I don't know," Cas said, "I didn't… I would never ask an angel to sacrifice himself to kill innocents. I'm gonna be sick."

"Then why did he say your name?"

"I don't know," Cas said again. Dean nodded, his anger clear on his face. He felt like punching something.

"Wait," said Hannah interrupting Dean before he got violent, "Roll it back. And…stop! That's an angel." She pointed to a young girl sitting at a booth that the murderer stood next to. "She's one of Metatron's."

"So this was some kind of hit?" Dean turned back to Cas.

"I," he hesitated, "I don't know." Dean slammed his hand on the table.

"Stop saying you don't know!" he yelled. Several angels, including Cas, flinched. Cas knew what this was really about. This wasn't about the murderous angels or the explosions, this was about Sam.

"You can't think I would allow something like this," he couldn't help Dean but at a time like this he needed his friend's trust, answers or no.

"Cas, I know you try to be a good guy, okay? I do. You try. But what you got here, this is a…a freakin' cult."

"Dean," his voice pleaded with Dean to trust him, to understand. But Dean wouldn't listen. He didn't hear the pleading in Cas' voice. He heard the uncertainty and the questions. The "I don't knows," and the "I wish I could help." But if he couldn't help, if he didn't know, then what else was he useful for. Dean hated feeling useless, he hated having useless friends and it made him angry. Cas was the victim of that anger this time

"And the last time you had this kind of juice," Dean yelled, "You did kill humans and angels, and you did nothing but lie to me and Sam about it the whole damn time!" Cas looked down at his hands, his shame rendered him speechless, unable to defend himself against Dean's attack.

"I'm sorry," he whispered.

"Sorry?" Dean threw his hands in the air, "Well I guess that solves that. If you're sorry that makes everything better. Sorry doesn't erase the past, Cas. Sorry won't bring Sam back!" Cas looked up at Dean with pity in his bright blue eyes. This wasn't about him anymore, if it ever had been. As always Dean was angrier with himself. For not having all the answers, for failing Sam.

"Is this really important right now?" interrupted Hannah. Dean spun to face her, something like a growl rumbled from his throat. She, however, did not seemed fazed by his surly attitude or irate eyes. "I hate to interrupt but we have more important things to focus on. So unless you want to be more helpful, why don't you go sit in the office with one of your babysitters and let us deal with this?"

"My what?" Dean glanced from Cas to Hannah and back again. Cas just shook his head. "Alright," Dean sighed. He leaned in towards the screen. "Did you know this angel?"

"Yes," answered Cas, "His name was Oren. He was a new recruit. He worked in community outreach."

"And what does that mean?"

"Some of my troops are stationed at a local hospital," explained Cas, "They help where they can. Minor miracles. It's nothing that would attract attention."

"So, what was he doing in that video, with the stabbing?"

"The Enochian runes that were carved in his chest, I...I think that they were meant to focus energy. When he stabbed himself, it unleashed all that power."

"So, what about the girl?" asked Dean, "What happened to her?"

"If she was the target," answered Cas, "If the blast was focused on her, then more likely than not, she…she was atomized. So, what do we do now?"

"You don't do jack," said Dean, "I will head to the hospital and see if I can find anyone who was friends with this…walking nuke."

"Hold on," said Cas, "These are my people. I can help." No you can't! Dean wanted to yell. You can't help anyone. Not me. Not Sam.

"Well, that's sort of the problem," said Dean out loud, "I mean, the Manson girls aren't gonna give us a straight answer with Charlie in the room, so just hang back."

"Sir," said Hannah sitting at the computer Dean had left earlier, "It seems the human found more on Josiah."

"I did?" said Dean. He joined Cas and Hannah at the computer.

"It seems he left a trail in Colorado." Cas turned to Dean.

"This is how I can help," he said eagerly, "I can follow Josiah's trail to Colorado."

"Alright," said Dean, "You go see what the dude's up to and I'll go to the hospital." Cas nodded and leaned down next to Hannah.

"Keep an eye on him," he whispered. He stood up and glared at Dean who snarled right back.