The obscure comics publisher was Portman Distribution. Portman had been part of the Top Sellers group of companies but had been sold to an outfit in Croydon called Gold Star, run by the Gold brothers, Ralph and David (there's a story right there, but I'll save that for another time). I was hired because I'd worked at Top Sellers and they thought I could edit a line of reprint comics for them.
We started with two horror titles - Castle of Horror and Tales of Terror - which would reprint material from Marvel's line of black and white magazines. This surprised me because by 1978 Marvel had their own UK operation and so should have been publishing this stuff themselves. As it happens, when Marvel UK's Ray Wergan realised what was going on, he put a stop to it by complaining to Marvel's US office. The titles were cancelled immediately.