Synopsis
History
First publication: Analog, serialized in 4 parts, August to November 1966
1967 Hugo finalist for best novel.
Review
Videos
We have the story in these editions:
Analog Science Fiction - Science Fact, September 1966, edited by John W. Campbell, Jr., magazine, Conde Nast, 1966-09-00
Analog Science Fiction - Science Fact, October 1966, edited by John W. Campbell, Jr., magazine, Conde Nast, 1966-10-00
All of the stories in the Lord Darcy series:
Too Many Magicians
Ten Little Wizards
A Study in Sorcery
The Eyes Have It
A Case of Identity
The Muddle of the Woad
A Stretch of the Imagination
A Matter of Gravity
The Sixteen Keys
The Ipswich Phial
The Spell of War
The Bitter End
The Napoli Express