Asimov concluded his science fiction (except for a posthumous collection titled
Gold
) with
Forward the Foundation,
published in 1993. In it he returned to the pattern of long novelettes with which he started the Foundation series, and, in fact, the first two sections were published in
Isaac Asimov's Science Fiction Magazine.
The novel was made up of four parts plus a short Epilogue, each of the four parts preceded by an excerpt from the
Encyclopedia Galactica
and the Epilogue followed by an excerpt about Seldon himself. In "Eto Demerzel" Seldon is forty, and in each subsequent part he is ten years older.
Forward the Foundation,
then, traces the rest of Seldon's career on Trantor during which he perfects psychohistory, sets up the First and Second Foundations recorded in the
Trilogy,
and, in the Epilog, records the Crisis holograms that appear periodically through the
Trilogy.