J H wrote:
" And some good human seed. If you feed them well, they might sing for you. Challengers of the Unknown was such a fun Kirby series. All the sci-fi and Kirby Monsters you could want. And it had a hint of his Golden age Simon/Kirby style, too. Love it! Big congrats!
"
thats because the Original Concept/Idea and some pages from Showcase 6 were drawn and created by Joe and Jack during mainline. Joe let jack take it to DC as Jack was in need for a job. Joe never got any credit for any of it until recently where some people are learning of it.