Creatures on the Loose — Marvel
Issue: #15
Last valuation update: 2026-03-31
A large sentient hill shaped alien plans to conquer the world with a mind control device. It is up to one man to stop it.Reprints Journey Into Mystery #68 SPRAGG Conqueror of the Human Race, Tales To Astonish #25 Where Lurks The Ghost and Tales To Astonish #22 Help!
Creators: Stan Lee, Jack Kirby, Marie Severin, Dick Ayers, Dick Ayers, Gil Kane
Characters: Professor Bob Robertson, Spragg