Comic Title: Adventure Comics #328
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: January 1965
On Sale Date: November 25, 1964 Copyright Date November 25, 1964
Source: Library of Congress, Periodicals 1964

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Man Who Knew Superboy's Identity"
Pages: 10

Feature(s):
Superboy (of Earth-1)

Penciller: Curt Swan
Inker: Sy Barry

Reprinted From:
Superboy #36 (1954)

Feature Character(s)

• Superboy (last appearance in Superboy #36; next appearance in Adventure Comics #205)

Supporting Character(s)

• Jonathan Kent (disguised as the Mask; last appearance in Superboy #36; next appearance in Adventure Comics #205)
• Martha Kent (last appearance in Superboy #36; next appearance in Adventure Comics #205)
• Lana Lang (last appearance in Superboy #36; next appearance in Adventure Comics #206)

Other Character(s)

• The mayor of Smallville (no further appearances)
• The principal of Smallville High School (no further appearances)
• A museum curator (no further appearances)
• Eric Stanton and Albert Crane (Clark's cousins; no further appearances)

Comments:
This story is labeled as "A Hall of Fame Classic".

Synopsis:
Superboy is contacted by the Mask, a mysterious man in a lead mask and robe. The Mask explains that he knows Superboy's secret identity and forces the Boy of Steel to perform several odd tasks. Superboy obeys the Mask and completes each task. After completing the final one, Clark returns home where his family has planned a surprise party for him. Jonathan Kent reveals that he was the Mask. He got Superboy to help gather distant relatives for a reunion at the party. The tasks also kept him occupied, so they could spring the surprise.