Kampen mot vintern. Del 10.

 Mary explains her plan:
Mary: The flute players' flutes can be heard even in space. This shows that they can send waves through vacuum. Gravity consist of waves...
Logan: What?
Mary:... so if they only play in the right key, a gravity wave ought to be created that pulls back the planets to their correct positions!

Flute player: Have you found the gravity key?
Flute player 2: I think so...

Flute player: No! We played too fast! We created a black hole!