4 books in series

Countdown

Countdown is a 4-book series with 4 primary works first released in 1998 with contributions by Daniel Parker and Tom Kratman.

January
#1PopularFirst

1998 • 1 Reader • 136 pages

Countdown: M Day
#2

2011

Countdown: H Hour
#3

2012 • 615 pages

May
#5

1999 • 148 pages