The closer you get the stronger it gets.

Maybe have our nieghbor galaxy or solar system get absorbed first so we can observe from a distance the collecting of large masses into some black hole. That way the world could have a time period to seek a solution.

The solution could be to send harmonic energy quantums at the black hole and you could cratively find a way to turn the black hole into a new solar system or galaxy (like a binary star system?).

Have fun.