“The Betrothal ” • short fiction • Asimov's Oct 1990
“The Fourth Intercometary ” • short fiction • Asimov's Nov 1991
“Going West ” • Universe 3, 1994
“Passage to Galena ” • short fiction • Asimov's Dec 1995
“The Road to Reality ” • short fiction • Asimov's Mar 1996
Tower to the Sky • novel • Baen , 1988
“The Valley of the Humans ” • short fiction • Asimov's Nov 1994