Challengers of the Unknown – Issue 4 by Jason Garrattley Posted March 27, 2009 in Challengers of the Unknown, Jack Kirby, Jason Garrattley. Original cover here. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email this to a friend (Opens in new window)Click to print (Opens in new window)