Payback

by William W. Johnstone

Published 1 March 2000

Survival

by William W. Johnstone

Published 1 October 2000

Quickstrike

by William W. Johnstone

Published 1 May 2003

Coldfire

by William W. Johnstone

Published 1 May 2002

Death

by William W. Johnstone

Published 1 May 2001

Kill Zone

by William W. Johnstone

Published 1 May 2005