"No, that can't be it," mumbles Gaeta. (Were he not so lost in his thoughts, he would have phrased that more respectfully.) "Everybody left during the exodus from Kobol, there's even a passage about blood being claimed if anyone tries to return."

Unless --

There's history there, sure, but when exactly did Pythia write her book? The historical sections might not overlap with the stories of the Exodus after all.

Frak, he used to know this. Why is he having such a hard time remembering?