need a simple explanation of Euclids theory.
Nightmare Castle was created on 1965-07-16.
Nightmare in Blood was created in 1978.
Nightmare Stage was created in 1992.
Nightmare in Pink was created in 1964.
Nightmare Inn was created in 1993.
Nightmare Circus was created in 1996.
We Are the Nightmare was created on 2008-04-15.
Welcome to My Nightmare was created in 1974.
A Writer's Nightmare was created in 1988.
Nightmare Alley was created in 1946.
Nightmare Beach was created in 1988.