Monsters was a Charlton mag distributed in the UK only. The contents of the four issues are identical to four of Charlton's US monster mags. Only the covers are different. Monsters No. 1 is Mad Monsters No. 6, No. 2 is Horror Monsters No. 6, No. 3 is Horror Monsters Presents Black Zoo and No. 4 is Mad Monsters No. 5. (See "Horror Monsters" for more Charlton info.) All issues of Charlton's Monsters are extremely hard to find.