In which Darcy's been keeping secrets and is snarky, the UK brothers are mad, Alfred is a supportive boyfriend, Loki knows everything, and the Avengers are confused.
Or, alternately, The Time The Dragon Lived, And Everyone Was Happy. This is totally the happy ending of "This Life of Mine." A story in which nobody (really) dies, and Luna Lovegood gets her happy ending (for once).
Fairytales start with "Once Upon a Time," and end with "Happily Ever After." But this is no fairytale, and Luna Lovegood is no Princess, come to slay the dragon.