The Callahan Touch

From Author Wars - https://authorwars.com/publications/the-callahan-touch-542741.html

Overview:

Title: The Callahan Touch
Author: Spider Robinson
Year: Unknown
ISBN-10: 0441001335
Publisher: Ace Books
Price: $5.99
Pages: 228
Binding: Paperback
Type: Novel
Title Reference: The Callahan Touch
Notes: Seventh printing by number line but no printing date given on copyright page
Portions of this novel appeared, in substantially different form, in Analog magazine, as "The Immediate Family" and "The End of the Painbow".
Ace Hardcover edition was October 1993.
"Callahan's Place" is a filk song written by the real Jordin Kare (also a character in the book), slightly altered by Spider Robinson.
Canadian price: $7.99