Series

Age of Unreason

by Greg Keyes, J. Gregory Keyes

4 books in reading order

  1. #1 Newton's Cannon Greg Keyes, J. Gregory Keyes · 1998
  2. #2 A Calculus of Angels Greg Keyes, J. Gregory Keyes · 1999
  3. #3 Empire of Unreason Greg Keyes, J. Gregory Keyes · 2000
  4. #4 The Shadows of God Greg Keyes, J. Gregory Keyes · 2001