Comic Title: House of Secrets #72
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May/Jun 1965
On Sale Date: March 11, 1965 Copyright Date March 11, 1965
Source: Library of Congress, Periodicals 1965

Frequency: Bi-monthly
Cover Price: $0.12
Page Count: 32
Editor: Jack Schiff

Title: "The Revolt of the Morloo"
Pages: 12

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

Writer: Jack Miller
Artist: Bernard Baily

Feature Character(s)

• Mark Merlin (last appearance in House of Secrets #71; next appearance in House of Secrets #73)

Supporting Character(s)

• Elsa Magusson (last appearance in House of Secrets #71; next appearance in House of Secrets #73)

Villain(s)

• Doctor-7 (last appearance in House of Secrets #68; no further appearances)
• The Morloo (last appearance in House of Secrets #68; no further appearances)

Other Character(s)

• Charlie (a death row inmate; no further appearances)

Synopsis:
Doctor-7 escapes from prison by summoning the Morloo. The villain and his creature leave a path of destruction in their wake. Mark Merlin confronts the pair and uses a potion on them. The potion breaks Doctor-7's control of the Morloo causing the creature to attack them both. While Merlin and his nemesis dodge the creature, Elsa visits Doctor-7's lab to retrieve the potion capable of exiling the creature. Doctor-7 realizes that he has been tricked, and the Morloo's revolt was only an illusion. When he commands the Morloo to kill Merlin, Elsa arrives with the antidote and banishes the creature. Merlin then returns Doctor-7 to prison.