Comic Title: Superboy #218
Publisher: DC (National Periodical Publications, Inc.)
Address: 75 Rockefeller Plaza, New York, NY
Cover Date: July 1976
On Sale Date: April 20, 1976 Newsstand Date April 20, 1976
Source: Direct Currents, Amazing World of DC Comics #11

Newsstand Date April 20, 1976
Source: Comic Reader, #129

Copyright Date April 20, 1976
Source: Library of Congress, Periodicals 1976

Frequency: Monthly (with the exception of Nov., Feb., May and Aug.)
Cover Price: $0.30
Page Count: 32
Editor: Murray Boltinoff

Title: "The Secret Villain the World Never Knew"
Pages: 17

Feature(s):
Legion of Super-Heroes (of Earth-1)

Writer: Cary Bates
Artist: Mike Grell

Reprinted In:
Legion of Super-Heroes Archives Vol. 12 HC (2003)
Showcase Presents:Legion of Super-Heroes Vol. 5 TPB (2015)

Feature Character(s)

• Legion of Super-Heroes (last appearance in Superboy #217; next appearance in Karate Kid #4)
• Brainiac 5 (last appearance in Superboy #217; next appearance in Karate Kid #4)
• Chameleon Boy (last appearance in Superboy #215; next appearance in Superboy #220)
• Chemical King (last appearance in Superboy #211; next appearance in DC Special #28)
• Colossal Boy (last appearance in Superboy #217; next appearance in Superboy #219)
• Cosmic Boy (last appearance in Superboy #216; next appearance in Karate Kid #6)
• Dream Girl (last appearance in Superboy #203; next appearance in Superboy #220)
• Element Lad (last appearance in Superboy #215; next appearance in Superboy #220)
• Karate Kid (last appearance in Karate Kid #3; next appearance in Karate Kid #4)
• Lightning Lad (last appearance in Superboy #215; next appearance in Karate Kid #4)
• Lightning Lass (last appearance in Superboy #217; next appearance in Superboy #219)
• Mon-El (last appearance in Superboy #217; next appearance in Karate Kid #4)
• Phantom Girl (last appearance in Superboy #215; next appearance in Superboy #220)
• Saturn Girl (last appearance in Superboy #215; next appearance in Superboy #219)
• Shadow Lass (last appearance in Superboy #217; next appearance in Superboy #221)
• Shrinking Violet (last appearance in Superboy #214; next appearance in Superboy #219)
• Star Boy (last appearance in Superboy #211; next appearance in Karate Kid #6)
• Sun Boy (last appearance in Superboy #215; next appearance in Superboy #219)
• Superboy (last appearance in Superboy #217; next appearance in Superboy #219)
• Tyroc (last appearance in Superboy #216; next appearance in Superboy #222)
• Ultra Boy (last appearance in Superboy #215; next appearance in Superboy #219)

Supporting Character(s)

• Infectious Lass (last appearance in Superboy #201; next appearance in Legion of Super-Heroes #300)