Metatron returns just in time to reveal the Darkness' identity.
Supernaturalis excellent at the big, gasp-worthy twist.
But the show also uses it sparingly.

Credit: Katie Yu/The CW
Lets get into it shall we?
If I had to guess, Id put her around high school age?
Eh, whos really counting?
But, like most teens, Amara comes home to an angry father, whos waiting up for her.
Meanwhile, the Winchesters are trying and failing to follow the trail of Amaras soulless victims.
Because despite what I might argue, watching Jenny Jones the Jerry Springer ofSupernatural is not a life.
Its just untucked this time.)
Only, when Cas tries to leave the bunker, he gets flashes of his time under Rowenas spell.
Oh, because Crowley is having his demons track down Amaras victims and kill them.
And thats something that Sam and Dean realize when they trap one of Crowleys own.
Dean: Yeah, but then hed have to spend more time there, and he hates that place.
Sam: Oh right.
Keep forgetting about you and Crowleys summer of love.
I dont know whats better: the fact that Crowley hates Hell or Sam saying summer of love.
And off they go.
So instead of parenting, Crowley does what he does best: He bargains.
Citing his wisdom and experience, he asks her to slow down.
And you know what?
Metatron loves this life.
As he puts it, reality is the great literature of our era.
(And Im secretly horrified that thats true.)
Stuff like paying rent and keeping your phone charged?
Yeah, it sucks.
And this is when we get the full story.
The Darkness, his sister.
I still cant get over it.
This might be my favorite twist ever.
Although, as she informs him, he wont hurt her.
Amara then orders her father out of her room so that she can talk to Dean about their connection.
Even shes not sure what it is.
Maybe its that hes the first thing she saw once she was freed.
Her first experience of His creation.
(If only we were all that lucky, amirite?)
Either way, Amara says theres no fighting it.
She is officially fascinated.
And when Dean doesnt stab her, well, we know enough.
Amaras reasoning for her return: She came here to settle a score.
Back at the bunker, Cas, Sam, and Dean catch one another up.
Dean is mad that Cas let Metatron go, and Cas is suspicious that Dean let Amara go.
Is that the literal cage that holds Lucifer and Michael?
Sam has been there, after all.
Well played, guys.
I dont know about you all, but I love where this is going.
The drama is there, but so is the comedy.
I love this show.