Written by France E. Herron and various Art and cover by Bob Brown Thrill to more than 500 pages of comic action collected from CHALLENGERS OF THE UNKNOWN #18-37 (1961-1964)! Along the way, the intrepid foursome faces dangers of every imaginable sort, including cosmic-powered alien beasts, doomed worlds, futuristic knights and much more. Advance-solicited; on sale April 23 • 528 pg, B&W
- ISBN13 9781401217259
- Publish Date 13 May 2008
- Publish Status Out of Print
- Out of Print 28 October 2021
- Publish Country US
- Imprint DC Comics
- Format Paperback (UK Trade)
- Pages 528
- Language English