Marvel Comics Fantastic Four #6 CGC 1.8 $665.00 1 in stock Buy Now Category: Comic Books Description Description First Marvel villain team up. Second appearance of Doctor Doom and Silver Age Sub-Mariner. Related products Captain America #110 CGC 7.5 $290.00 Buy Now Avengers #232 CGC 9.0 $230.00 Buy Now Moon Knight #1 CGC 9.8 $1,265.00 Buy Now Detective Comics #880 CGC 9.6 $400.00 Buy Now All purchased items have a 15% Buyer’s Premium added.