We are back with Dean and Sam! Joined by Cas. I hope you all enjoy it, feel free to review.

"I don't understand," Castiel grumbled to himself as he looked around the ordinary room.

"That doesn't take much, Cas," Dean muttered in response as he leant down to inspect the recently deceased body.

"Why do these people keep dying unexpectedly? This has to be the fourth human and they have all been within a few days of each other. How is that possible?" Castiel questioned Dean, his voice filled with uncertainty as he glanced down at the woman's body.

"Well gee Cas. Let me consult my crystal ball. I don't know, that's kind of the reason why we are here. You know. To solve the mystery," Dean replied sarcastically as he checked the lady for any signs of struggle or wounds.

"What's even stranger is that none of the victims have been attacked. No blood at the crime scenes, no hairs, no sulphur. Nothing," Sam sighed exasperatedly as he loosened his tie. He was growing tired of keeping up the private investigator charade.

"What have the post-mortems been so far?" Dean asked struggling to remember the lengthy reports that were filled with medical jargon.

"Nothing special, all three have been clean, fit and healthy," Sam shrugged, this case was one of the most mind-boggling they had come across in a long time. Even by their standards, he was failing to see any connections.

"Why is her hand clamped? Was she scared about something?" Castiel asked as he glanced at her tight fist.

"Rigor mortis, Cas. Never mind," Sam couldn't be bothered to explain the term to Cas, who stared at him as if he were speaking a foreign language.

"No. She is holding something. I see a white point," Castiel insisted as he bent down to examine her hand. Using his powers the lady's hand relaxed and Castiel retrieved a slip of paper.

Dean walked over and snatched it out of his hands before reading the writing.

"Looks like we've hit the jackpot. Way to go Cas!" Dean praised as he showed them an address.

"Wait. You think this is our connection, that all of the victims went to this address?" Sam asked warily and Dean rolled his eyes before saying cheerfully,

"It ain't exactly rocket science, Sam!"

"I know Dean but doesn't it seem a bit. I don't know, risky. A slip of paper isn't much to go on," Sam pointed out, his gut warning him that this was a bad idea.

"Relax Sam we've got angel juice on our side. Besides we have solved cases with a lot less," Dean gestured to Cas and patted his brother on the shoulder, who still didn't look convinced.

Before he could protest a police officer walked in and addressed them,

"Times up boys. We have to bag this lady and take her to the morgue for examination. Did you find anything useful or anything that could be regarded as evidence?"

"We found a," Cas was cut off as Dean elbowed him discreetly in the stomach, although being an angel it didn't wind him, Cas glared at the back of Dean's head.

"What he meant, Officer, is that we found absolutely nothing," Dean replied casually and gulped internally as the officer laid a hand on his shoulder as he headed towards the door.

"That's probably because we got here first. Here," the officer held up an evidence bag that contained a gold ring.

Sam and Dean exchanged curious glances. How was a ring meant to offer any valuable pieces of information?

"A wedding ring. Two males and two females. Couples, the victims could have been couples," Castiel voiced his thought processes aloud and looked bemused as to why Sam and Dean were staring intently at him.

As they left and entered the impala Castiel stated simply,

"I can be useful too,"

Sam stifled a laugh and Dean looked at Castiel through his front mirror and said,

"Of course you are Cas. Now let's go see what's at this place."

As the impala roared off Sam glanced absent-mindedly out of the streaky window, I wish Huntress was here with us.