Very interesting.
Loved the idea and I loved how everything went in this chapter. :)

Absolutely loved how Cas deepened the kiss. x'D

This fic is awesome! I really enjoyed what you've done so far. Thanks for sharing!

I've been following this story since it was first published! And am SO happy that new chapters keep coming. Hopefully, this story continues as long as the show, itself, continues. Hey...maybe even longer(?). Know I'll keep reading this story as long as this incredible writer keeps writing it!

I enjoyed reading your story. I couldn't put it down. It's too bad that you didn't complete it. Thank you for sharing your story. I hope that you will finish it soon.

You totally got the interpol thing from leverage

I bet one of the $20 bills Cas found was my lunch money in 5th grade that I lost.

Just thought I'd let you know that "Johnnie Walker Blue" is spelled with an "ie" not a "y"

Looking forward to more.

Hi, forgot something. After the fifth row of x's, in the sixth paragraph, in the sentence "He was trying to wrap HIM mind around the fact that his parents were still having sex when the two agents told him to keep his nose clean and left, without arresting him."

You wrote "him" instead of "his."

Yes, I'm here to be annoying, again.

Anyways I just wanted to mention that when Crowley stepped in to prevent the first blood sacfrice from succeeding, since you don't call him Crowley, and fail to mention a Scottish accent, it can be read as being Gabriel. Actually, the first time I read it I thought it was Gabriel until Cas said that it was Crowley.
Mainly because:

1.) "Then he flicked his fingers."- that could also mean that he snapped his fingers, which, I'm pretty sure you noticed, is Gabriel's thing.

2.) "The Halloween Candy Kiss Fairy" sounds like something Gabriel would come up with.

3.) "A few steps across the room and he scooped up the piece of candy Luke had dropped."- Gabriel's sweet tooth!

Also I would just like to mention that I would think it would be pretty obvious to Cas why Crowley would be stopping the sacrifice. The fact that he doesn't want the deal broken.
It could be that Cas already knows and isn't telling Sam and Dean because he doesn't want them to know about Crowley's plan to become King of Hell, because there's a chance that they would kill Crowley, and Cas needs him alive.

Just to let you know in chapter 37 in the 3rd paragraph after the 6th row of x's, you forgot one of the "n"s in "Deanna."

Really, REALLY enjoying this fic! You captured both Bobby's and Rufus's personalities perfectly. Also loved that you threw Roy and Walt in there for a bit. Also I loved the Niveus take down. Glad to finally know what it was that Crowley said before beating Brady's head in, I could never understand what he said in that scene.

There's just one thing that I'd thought I'd point out. Since Sam is Lucifer's vessel, and as you said, the demons would have never have expected Sam and Dean to ever break in, I don't think Sam's blood would have worked. As you said, Lucifer may have fallen, but he's still an angel, so the wards would keep him out too. So Lucifer would never be able to get in there to dismantle the wards in the first place. The only reason I can think of that they would still have Sam's blood registered would be if there were other access keys that used blood recognition that they would want Lucifer to be able to have access to.
If that were the case, if I were them I would have the crystal recognition security thingy be separate from the others, that way it wouldn't register Sam's blood, unless they thought that eventually Sam would get so hyped up on demon blood that he would go dark side and willingly go in there to dismantle the wards for Lucifer. But I wouldn't think that they would actually believed that would happen, rather thinking that Lucifer would just order them to dismantle them, but they thought better safe than sorry.

Just thought I'd let you know that Kansas City is actually in Missouri, not Kansas, which is a bit ironic if you asked me. It's right on the Kansas/Missouri border, but it is list as residing in Missouri.

Since the Colorado neighbors are in this fic, are you going to address who Naomi's vessel is? And what the Colorado neighbors may be doing to find her? ;)

Can't wait for the next chapter!