Author | Gregory Keyes |
---|---|
Cover artist | Therese Nielsen |
Country | United States |
Language | English |
Series | The Age of Unreason |
Genre | Alternate history, fantasy |
Publisher | Del Rey |
Publication date | March 30, 1999 |
Media type | Print (Paperback) |
Pages | 406 |
ISBN | 978-0-345-40607-1 |
OCLC | 39695456 |
813/.54 21 | |
LC Class | PS3561.E79 C35 1999 |
Preceded by | Newton's Cannon |
Followed by | Empire of Unreason |
A Calculus of Angels is an alternate history and fantasy novel by American writer Gregory Keyes, the second book in The Age of Unreason series. [1] [2] It was initially published by Del Rey on March 30, 1999. A follow-up to Newton's Cannon , the book is set in 1722 and continues the alternate history where Isaac Newton discovers that alchemy works, and a powerful science is built upon it.
Alternate history is a genre of speculative fiction in which one or more historical events have occurred but are resolved differently than in actual history. As conjecture based upon historical fact, alternate history stories propose What if? scenarios about crucial events in human history, and present outcomes very different from the historical record. Some alternate histories are considered a subgenre of literary fiction, science fiction, or historical fiction.
Gregory Keyes is an American writer of science fiction and fantasy who has written both original and media-related novels under both the names J. Gregory Keyes and Greg Keyes.
The Age of Unreason is a series of four novels written by Gregory Keyes:
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Alternate Empires is an anthology of alternate history science fiction short stories edited by Gregory Benford and Martin H. Greenberg as the first volume in their What Might Have Been series. It was first published in paperback by Bantam Books in August 1989, and in trade paperback by BP Books in March 2004. It was also gathered together with Alternate Heroes into the omnibus anthology What Might Have Been: Volumes 1 & 2: Alternate Empires / Alternate Heroes.