When the Black Holes swallow up all of the universes, then what?

Allegedly Black Holes pull in any matter that gets close to the point even light cannot escape its grasp. Logically if the cosmos last long enough, a Black Hole (if acting like a cosmic matter magnet) will suck everything into it. As it gets larger it would seem the pull would be greater, matter would be pulled in faster and from further away until there is nothing left to pull in if that were to happen, then what?