What If the Largest Black Hole Entered Our Solar System?

It’s invisible, deadly and sucking up every bit of matter in its path. The most massive black hole in the known Universe is headed right toward Earth. What would you see as it started to slurp up the Milky Way Galaxy? What kind of tasty dish would Earth become? And once it’s finished with us, where would it go next? Maybe the Orion Arm? Or perhaps the Oort Cloud?