"We knew the world would not be the same.
A few people laughed, a few people cried, most people were silent.
I remembered the line from the Hindu scripture, the Bhagavad-Gita.
Vishnu is trying to persuade the Prince that he should do his duty and to impress him takes on his multi-armed form and says,
'Now, I am become Death, the destroyer of worlds...'
I suppose we all thought that one way or another."
- J. Robert Oppenheimer
I thought they were separated again in the end? I don't completely remember, it's been a while since I read First Strike...
But yea, like SonicJohn said, they end up in GoO later.