House of Mystery #171 is an issue of the series House of Mystery (Volume 1) with a cover date of December, 1967. It was published on October 5, 1967.
Synopsis for "The Micro-Monsters!"
Appearing in "The Micro-Monsters!"
Featured Characters:
- Robby Reed
- Go-Go
- King Viking
- Whirl-I-Gig
Antagonists:
- Doc Morhar (Single appearance)
- Carr (Single appearance)
- Microbe Monsters (Single appearance)
Locations:
- Littleville
- Microbe World
Items:
Synopsis for "The Martian Marauders"
J'onn J'onzz must stop six Martian criminals who have changed their shapes into powerful monsters that are each stronger than he is.
Appearing in "The Martian Marauders"
Featured Characters:
Supporting Characters:
Antagonists:
- Martian criminals
- S'tor (Single appearance; dies)
Locations:
Vehicles:
- Martian Spaceships (Destroyed)
Notes
- "The Micro-Monsters!" is reprinted in Showcase Presents: Dial H for Hero Vol. 1.
- "The Martian Marauders" is reprinted in Showcase Presents: Martian Manhunter Vol. 2.
- A "Moolah the Mystic" comic strip from House of Mystery #52 is reprinted in this issue. Written and drawn by Henry Boltinoff.
See Also

