“NEWT rummages in his pockets and pulls out a tiny bottle with only a couple of muddy drops left inside it.
TINA: Is that Polyjuice?
NEWT (of the bottle): Just enough to get me inside.
He looks down at his coat and finds one of THESEUS’S hairs on his shoulder. He adds it to the mixture, drinks, and turns into THESEUS, still wearing NEWT’S clothes.
TINA: Who—?
NEWT: My brother, Theseus. He’s an Auror. And a hugger.”