Invaders #31 features the unusual crossover of Marvel's World War II heroes battling Frankenstein's Monster in one of the more memorable late-series issues. Written by Don Glut with artwork by Chic Stone and Bill Black, the issue delivers a unique blend of superhero and horror themes, highlighted by an eye-catching Joe Sinnott cover. Professionally graded CGC 9.0 with Off-White to White Pages, this copy offers excellent eye appeal and strong preservation. Collectors of Bronze Age Marvel, horror crossovers, and complete Invaders runs will appreciate this high-grade example. The distinctive Frankenstein cover also gives the issue additional display appeal beyond standard run collectors.