Challengers of the Unknown (1958-1978)
Iss # Published Issue InfoImg
81 July, 1977 Multi-Man's Master Plan; Cover by Michael Netzer - 'Mike Netzer, Mike Nasser'L
82 September, 1977 The Lurker Below; Cover by Michael Netzer - 'Mike Netzer, Mike Nasser'L
83 November, 1977 Seven Doorways to Destiny!; Cover by Rich Buckler - 'Ron Validar'L
84 January, 1978 To Save a Monster; When Deadmen Walk; Cover by Rich Buckler - 'Ron Validar'L
85 March, 1978 The Creature From the End of Time! ; Cover by Rich Buckler - 'Ron Validar'L
86 May, 1978 The War at Time's End?; Cover by Rich Buckler - 'Ron Validar'L
87 July, 1978 Twelve Million Years to Twilight; Cover by Alex SaviukL