Issue · Charlton Thunderbolt (1966) #56 Released Dec 1, 1966 USD $0.12 36 pages WriterPete Morisi ArtistSam Grainger PencillerPete Morisi InkerPete Morisi Next in Thunderbolt (1966) #57 Mar 1, 1967 #58 · Enters The Prehistoric Valley... Lost In Time! May 1, 1967 #59 Jul 1, 1967 #60 Sep 1, 1967
