Orphans of Eden
Spider Robinson
Callahan's Legacy
Callahan (8)
Lifehouse
Mindkiller (3)
Admiral Bob
Distraction
Mentors
Pandora's Last Gift
Plus Ça Change ...
Seduction of the Ignorant
Teddy the Fish
Callahan's Key
Callahan (9)
By Any Other Name
The Free Lunch
Callahan's Con
Callahan (10)
Very Bad Deaths
Very (1)
Variable Star
Robert A. Heinlein & Spider Robinson
The Stardance Trilogy
Spider Robinson & Jeanne Robinson
Stardance (99)
The Lifehouse Trilogy
Mindkiller (99)
Very Hard Choices
Very (2)