6 books in series
The Hiram Key
The Hiram Key is a 6-book series with 6 primary works first released in 1996 with contributions by Christopher Knight and Robert Lomas.
#1
1996 • 2 Readers • 422 pages • 3
#2
1997 • 1 Reader • 368 pages
#3
1999 • 1 Reader • 624 pages
#4
2003 • 1 Reader • 690 pages
#5
2004 • 1 Reader
#6
2006 • 1 Reader • 336 pages