So this is the place where Frankenstein supposedly created his monster! Where, according to legend, nothing but evil can ever come out of this castle! 
- —Unnamed Professor
Appearing in "I Created Sporr! The Thing That Could Not Die!"
Featured Characters:
- Unnamed Professor
Antagonists:
- Sporr (First appearance) (Apparent death)
Other Characters:
- Numerous unnamed villagers
- Unnamed Coachman
- Victor Frankenstein (Mentioned)
- Frankenstein's Monster (Mentioned)
- Unnamed Boy
- Bruno (Farmer)
Races and Species:
Locations:
Items:
- Growth Machine
Synopsis for "I Created Sporr! The Thing That Could Not Die!"
A scientist moves into Dr. Frankenstein's castle to set up his experimental growth ray. When he trains it upon an amoeba, the frightened villagers burst in, and seeing the equipment, think he is going to bring ruin down upon them and hustle him off to the town jail. With no one to shut off the growth machine, the amoeba grows to huge size and smashes out of the castle to menace the village. The scientist escapes his jail cell and uses his lab coat soaked with sugar to lure Sporr into a quicksand pit.
Appearing in "The Thread"
Journey Into Unknown Worlds #13
Featured Characters:
- Matt Anderson
Antagonists:
- Midget Morgan / Count Morgan
Other Characters:
- Red Murdock
- Pop Anderson
- Dr. Waynne
Races and Species:
Locations:
- Yukon
- Red's Water Front Shack
- Yukon River
- Saint Elias Mountains
- Brenwcht (Only in flashback), Germany (Only in flashback),
- Rome (Only in flashback), Italy (Only in flashback),
Synopsis for "The Thread"
Journey Into Unknown Worlds #13
Appearing in "I Know the Secret of the Flying Saucer!"
Featured Characters:
- Flight 150
Supporting Characters:
- Martians
- Leader 1
Other Characters:
- Numerous unnamed Earthlings
- Unidentified Police Department
- World News
- Unnamed Editor
- Roy
- United States Army
Races and Species:
Locations:
Synopsis for "I Know the Secret of the Flying Saucer!"
150 Martian flying saucers land on Earth, but do nothing after landing. Since no pilots emerge the natives transport the craft to military bases where their hulls are experimented upon, but cannot be penetrated. At a prearranged signal, all the saucers open a port. The curious scientists and military men enter, but discover no pilot or instrumentation. After they leave, the saucers return to Mars secure in the knowledge that was absorbed from their minds that Earth is no threat to them. The saucers themselves are the Martians.
Appearing in "Beware the Eyes of Igor!"
Featured Characters:
- Igor
Supporting Characters:
- Igor's Gang
Other Characters:
- NYPD
- Unnamed Police Officer
- Unnamed Film Projectionist
- Numerous unnamed movie theater patrons
Races and Species:
Locations:
Synopsis for "Beware the Eyes of Igor!"
A hypnotist attempts to mass hypnotize a movie theatre to steal everyone's wealth. However, in the process he hypnotizes himself and ends up being arrested.
Appearing in "I Escaped to Another World!"
Featured Characters:
- Unnamed Convict
Supporting Characters:
- Dr. Willem Kermanki
Other Characters:
- Convict's Grandfather (Death)
Races and Species:
Locations:
Items:
- Time Travel Machine
Synopsis for "I Escaped to Another World!"
A convict escapes prison and kidnaps a time machines creator and forces him to send him back in time in order to escape the police. After arriving in London in an unspecified date he breaks into a wax museum to steal clothes. When he is startled by someone he accidentally shoots them dead, but realizes that it is his own grandfather when he notices a tattoo on the man's hand. The criminal then disappears wondering how he was able to kill his own grandfather.
Notes
- "I Created Sporr! The Thing That Could Not Die!" is reprinted in Where Monsters Dwell #2.
- Frankenstein #1 places Castle Frankenstein in Geneva, Switzerland and the "birth" of Frankenstein's Monster in Ingolstadt, Germany. This contradicts "I Created Sporr! The Thing That Could Not Die!" which places the castle in Transylvania. As such the appearance has been changed to reflect the retconned origin.