Meanwhile, out in the vast reaches of space, remnants of the deadly plant creature float along aimlessly! Perhaps one day they will chance to reach Earth... and if they do, then will mankind learn in its final hours, the truth abut Chuck Dawson's sacrifice! 
Appearing in "The Sacrifice!"
Featured Characters:
- Colonel Chuck Dawson (First appearance; dies)
Antagonists:
- Plant-Thing from Mars (First appearance)
Other Characters:
- John (First appearance; dies)
- Numerous unnamed Martians
- United States Army (Vision or hallucination)
- Numerous unnamed Earthlings
- United States Government (Mentioned)
Races and Species:
Locations:
- Earth-TRN964
- Solar System
Vehicles:
- Mars Rocket
Synopsis for "The Sacrifice!"
In the year 1971 a man makes the first flight to Mars and finds to his horror that a plant creature has destroyed all life on Mars and demands to be taken to Earth so as to repeat the process. The man kills himself by blowing up the spaceship and stranding the monster in space.
Appearing in "Strange Mission"
Mystery Tales #45
Featured Characters:
- Alfred Pook (First appearance)
Supporting Characters:
Races and Species:
Locations:
- Earth-616
- Sol
- Earth
- United States of America
- 108 Main Street
- Dr. Smith's Laboratory
- 10 S Main Street (Mentioned)
- 108 Main Street
- United States of America
- Unidentified Planet
- Earth
- Sol
Synopsis for "Strange Mission"
Mystery Tales #45
A man with with a toothache mistakes the office of a space scientist for a dentist and ends up discovering a new planet.
Appearing in "The Coming of the Giants"
Featured Characters:
- Bobby Grant
Supporting Characters:
- Sally Grant (Billy's Mother)
- Mr. Grant (Billy's Father)
Antagonists:
- Giant Aliens
- Numerous unnamed aliens
Other Characters:
- Numerous unnamed New Yorkers
- Spot (Billy's Dog)
- United States Army (Mentioned)
- NYPD
Races and Species:
Locations:
- Earthspace
Items:
- Alien Projector
Vehicles:
- Alien Spacecraft
Synopsis for "The Coming of the Giants"
Giant aliens menace New York, but flee at the slightest resistance. The New Yorkers find their projector suspect that the aliens' giant size was an illusion, however the aliens really were giant in size and left the equipment to disguise their cowardice.
Appearing in "The Mask of Morgumm!"
Featured Characters:
- Joe Phelps
Supporting Characters:
- Unnamed Mask Maker
Antagonists:
- Unidentified Police Department
Other Characters:
- Unnamed Store Clerk
- Unnamed Jewelry Seller
Races and Species:
Locations:
Items:
- Mask of Morgumm
Synopsis for "The Mask of Morgumm!"
A baby-faced criminal gets an ugly mask to disguise himself and intimidate people. When he removes the mask he finds that it has made his face just as ugly as the mask and so easily recognizable.
Appearing in "The Warning!"
Featured Characters:
- Unnamed Whistleblower
Supporting Characters:
- "Statue"
Antagonists:
- NYPD
- Unnamed Police Officer
Other Characters:
- Numerous unnamed New Yorkers
Races and Species:
Locations:
Synopsis for "The Warning!"
A man in a park warns several passerby that he saw a statue move but all, including the police officer, dismiss him as a kook. He addresses the statute, who replies back to him, send many more advance invasion troops disguised as statutes.
Notes
- "The Sacrifice!" is reprinted in Where Monsters Dwell #18.
- "The Mask of Morgumm!" is reprinted in Where Monsters Dwell #18.