You are a new wizard in London walking around at night when you see a group talking about something when you hear them mention the name Grindelwald

Newt: We still need to wait for Dumbledore to break the blood pact he made with Grindelwald.

Jacob: But won't that take long?

Eulalie: Probably, but at some point, we have to move, or they'll find us.

Theseus: She's right. We have to act fast before they know what we're planning.

Jacob: Hopefully, I'll see Queenie again...

Newt: You will, but first we'll need to get Credence out of Grindelwald's control.