Blood will Flow

Some of Lucifer did seem to go down that vent. But was that just going 'down' to the cage? Or did a bit of him go somewhere else?
I'm still not sold on the MOLUK storyline. But we did get Sam and Dean in chains in the custody of the Secret Service. As someone who prompts 'Winchesters v The Law', 'the boys get arrested', 'the boys end up in prison' every Summergen, this makes me very happy! :D
I imagine they'll probably drive them to a barn in the middle of nowhere and then Ketch will get involved somehow, but oh well.

Edited to say that I've just watched the promo for the next ep and...I do hope that over hiatus we get some good fanfic that's based on the snipped they showed!!! :)