|  | |
| 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.
References
- ↑ "Uchronia: The Age of Unreason Series". www.uchronia.net.
- ↑ "Fantastic Fiction.com: A Calculus of Angels by Gregory Keyes". www.fantasticfiction.com.
External links
- A Calculus of Angels title listing at the Internet Speculative Fiction Database
Sources
- "A Calculus of Angels (Book)." Publishers Weekly 246.12 (22 March 1999): 74.
- Green, Roland. "Adult books: Fiction." Booklist 95.16 (15 April 1999): 1518.
- Cassada, Jackie, and Barbara Hoffert. "Book Reviews: Fiction." Library Journal 124.7 (15 April 1999): 148.
- Vretos, Linda A., and Trevelyn E. Jones. "Adult/Young Adult: Fiction." School Library Journal 46.1 (January 2000): 156.
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