- Series: Age of Unreason Series Record # 5911
- Webpages: Wikipedia-EN
- Series Tags: fantasy (4), alternate history (1), alchemy (1)
- Age of Unreason
- 1 Newton's Cannon (1998) by Greg Keyes [also as by J. Gregory Keyes]
- 2 A Calculus of Angels (1999) by Greg Keyes [also as by J. Gregory Keyes]
- 3 Empire of Unreason (2000) by Greg Keyes [also as by J. Gregory Keyes]
- 4 The Shadows of God (2001) by Greg Keyes [also as by J. Gregory Keyes]
- Newton's Cannon (excerpt) (1998) [SF] by Greg Keyes [only as by J. Gregory Keyes]
- Empire of Unreason (excerpt) (2000) [SF] by Greg Keyes [only as by J. Gregory Keyes]
- The Shadows of God (excerpt) (2001) [SF] by Greg Keyes [only as by J. Gregory Keyes]
- The Age of Unreason (2017) [O/1-4] by Greg Keyes