Illustrated by Henry Reuterdahl
Binomen N/A
Body type Serpentine
Average length 6 to 9 meters
Sentience Sentient
Sapience Non-Sapient
Aggressivity Harmless
Place of origin Earth
Habitat Atmosphere
Diet Organic material
Locomotion Floating
Behind the Scenes
Universe The Horror of the Heights
Created by Sir Arthur Conan Doyle

The air-snakes are a strange type of atmospheric life form which inhabit the upper layers of the troposphere, above heights of 30,000 feet (~ 9 km).


These creatures appear to be made of vapor, and their bodies are no more solid than sea-foam. Like their name suggests, they are serpentine in shape, attaining body lengths of about 20 to 30 feet (~ 6 to 9 meters), and move freely in the air with phenomenal speed. Their coloration is light grey.

Despite their uncanny appearance, their barely substantial nature means they don't actually pose any danger. Presumably, they might feed upon the same layer of floating organic detritus which seems to constitute the base of the atmospheric food chain.


  • "The Horror of the Heights", by Sir Arthur Conan Doyle (1913)
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