Monsters on the Prowl — Marvel
Issue: #15
Last valuation update: 2024-06-27
Reprints: Strange Tales (1951) #82 Journey into Mystery (1952) #68
Creators: Stan Lee, Jack Kirby, Artie Simek, Dick Ayers, Dick Ayers, Steve Englehart, Don Heck, Syd Shores, John Severin
Characters: Spragg, The Thing called It