Last year, when I interviewed sci-fi writer Nancy Kress about her then new book Tomorrow’s Kin, she explained that this epic science fiction story was an expansion of 2014 novella, Yesterday’s Kin, one that had grown to the point where Tomorrow’s Kin was only the first book in a trilogy. With the second installment, If Tomorrow Comes (hardcover, Kindle), newly available, and the third, Terran Tomorrow, slated for November 13th, I once again find myself asking Nancy Kress about this sci-fi saga.