Q's dead twin brother is a family secret that gets revealed (by a clueless relative?) on her 10th birthday, 9/11.
How she reacts to the news is yet unclear. I need to do a bit more character sketching on Q before I can figure this out.
I MIGHT change the title to Quinella. Is "Q" a bit contrived? It's also a bit Star Trekkie, although my Q has nothing in common with the science fiction character.
I won't make any hasty decisions.