The Four-Leaf Clover
Isaac Asimov
Black Widowers (1)
The Lucky Piece
The Recipe
Marooned Off Vesta
Brandon, Shea & Moore (1)
Anniversary
Brandon, Shea & Moore (2)
Mirror Image
Elijah Bailey / R. Daneel Olivaw (10.2)
The Psychohistorians
Foundation (1)
The Traders
Foundation (Original Stories) (4)
First Law
Mike Donovan (1)
Reason
Mike Donovan (Robot) (1)
Catch That Rabbit
Franchise
Multivac (1)
All the Troubles of the World
Key Item
The Life and Times of Multivac
Point of View
The Last Question
Multivac (5)
Jokester
Multivac (6)
The Machine That Won the War
Multivac (9)