Comic Title: House of Secrets #51
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: December 1961
On Sale Date: October 19, 1961 Copyright Date October 19, 1961
Source: Library of Congress, Periodicals 1961


Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Jack Schiff

Title: "The Mystery of the Stolen Creature"
Pages: 9

Feature(s):
Mark Merlin (of Earth-1)

Penciller: Mort Meskin
Inker: George Roussos

Feature Character(s)

• Mark Merlin (last appearance in House of Secrets #50; next appearance in House of Secrets #52)

Supporting Character(s)

• Elsa Magusson (last appearance in House of Secrets #50; next appearance in House of Secrets #52)

Villain(s)

• Tom Fuller (a land owner; no further appearances)

Other Character(s)

• Jim Howes (an amusement park owner; no further appearances)
• An alien creature (dies in this story; no further appearances)

Synopsis:
Mark Merlin visits his friend Jim Howes who is opening a new amusement park. Jim shows Mark an alien creature which he recently discovered. Using a control device, Jim is able to utilize the creature's amazing powers.

Tom Fuller, the property owner, steals the device from Jim and begins destroying the park. When confronted he admits to wanting Jim ruined because he discovered oil on the land. Fuller sends the creature to attack Mark and Jim. When ordered to kill, the creature fights its controller. The beast ends up destroying itself in a dynamite blast. Mark then takes Fuller into custody for attempted murder.