Doubled Edge is a 4-book series with 4 released primary works first released in 2004 with contributions by Mercedes Lackey and Roberta Gellis.
#1 of 4 in Doubled Edge
2004 • 5 Readers • 676 pages
#2 of 4 in Doubled Edge
2005 • 2 Readers • 528 pages
#3 of 4 in Doubled Edge
2007 • 2 Readers • 377 pages