Challengers of the Unknown (Volume 2) 1-8 series Collections / DC publisher Pages: 8 issues 1991 year English comics Size: 125.2 mb. Tags: Challengers of the Unknown Challengers Unknown Challengers of the Unknown comics The second volume of the popular comic book publisher DC comics called "Challengers of the Unknown". Date of publication of comics - 1991. Watch online Challengers of the Unknown (Volume 2) 1-8 series or download Related comics: Challengers of the Unknown (Volume 4) 1-6 series Collections / DC Challengers of the Unknown (Volume 3) 1-18 series Collections / DC Challengers of the Unknown (Volume 1) 1-87 series Collections / DC The Ray (Volume 3) 1-4 series Collections / DC Dazzler (Volume 2) One-Shot Marvel Comment Type the two words shown in the image:* Send