Comic Title: Secret Society of Super-Villains #13
Publisher: DC (DC Comics Inc.)
Address: 75 Rockefeller Plaza, New York, NY
Cover Date: March 1978
On Sale Date: December 20, 1977 Newsstand Date December 20, 1977
Source: DC Coming Attractions, #13
For Release December 20th/22nd

Copyright Date December 20, 1977
Source: Library of Congress, Copyright Office 1977

Newsstand Date December 20, 1977
Source: Comic Reader, #151

Newsstand Date December 19, 1977
Source: Daily Planet, Vol. 77 #50
Listed as on sale the week of December 19th

Shipping Date November 29, 1977
Source: DC Coming Attractions, #13
Shipping the week of November 29th

Frequency: Monthly (with the exception of May, Aug., Nov. and Feb.)
Cover Price: $0.35
Page Count: 32
Editor: Jack C. Harris

Title: "One Earth Too Many"
Pages: 17

Feature(s):
Secret Society of Super-Villains (of Earth-1)

Writer: Gerry Conway
Penciller: Mike Vosburg
Inker: Robert Allen Smith
Letterer: Adam Kubert
Colorist: Cornelia Adams

Reprinted In:
Secret Society of Super-Villains Vol. 2 HC (2012)

Feature Character(s)

• Secret Society of Super-Villains (last appearance in Secret Society of Super-Villains #12; next appearance in Secret Society of Super-Villains #14)
• Blockbuster (last appearance in Secret Society of Super-Villains #12; next appearance in Secret Society of Super-Villains #14)
• Floronic Man (last appearance in Secret Society of Super-Villains #12; next appearance in Secret Society of Super-Villains #15)
• Reverse-Flash (last appearance in Secret Society of Super-Villains #12; next appearance in Secret Society of Super-Villains #14)
• Star Sapphire (last appearance in Secret Society of Super-Villains #12; next appearance in Secret Society of Super-Villains #14)
• Wizard (last appearance in Secret Society of Super-Villains #12; next appearance in Secret Society of Super-Villains #14)

Guest Star(s)

• Captain Comet (last appearance in Secret Society of Super-Villains #12; next appearance in Secret Society of Super-Villains #14)

Villain(s)

• Crime Syndicate (last appearance in Justice League of America #30; next appearance in Secret Society of Super-Villains #14)
• Johnny Quick (last appearance in Justice League of America #30; next appearance in Secret Society of Super-Villains #14)
• Power Ring (last appearance in Justice League of America #30; next appearance in Secret Society of Super-Villains #14)
• Superwoman (last appearance in Justice League of America #30; next appearance in Secret Society of Super-Villains #14)