"To business, Harry," said Riddle, still smiling broadly. "Twice -- in your past, in my future -- we have met. And twice I failed to kill you. How did you survive? Tell me everything. The longer you talk," He added softly, "the longer you stay alive."
I don't know what "To business" is supposed to mean in this context, since there are many meanings for the word 'business'. Is it a common phrase?
What does it exactly mean?
-- From Harry Potter.