Comic Title: House of Mystery #160
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: July 1966
On Sale Date: May 19, 1966 Newsstand Date May 19, 1966
Source: Direct Currents, Adventure Comics #345, Page 11

Newsstand Date May 19, 1966
Source: Newsdealer Magazine, V21 #3

Copyright Date May 19, 1966
Source: Library of Congress, Periodicals 1966

Frequency: Monthly, with the exception of February, May, August and November
Cover Price: $0.12
Page Count: 32
Circulation: 196819
Editor: Jack Schiff

Title: "The Wizard of Light"
Pages: 16

Feature(s):
Dial H for Hero (of Earth-1)

Writer: Dave Wood
Artist: Jim Mooney

Reprinted In:
Plastic Man 80-Page Giant #1 (2004)
Showcase Presents:Dial H for Hero TPB (2010)

Feature Character(s)

• Robby Reed (last appearance in House of Mystery #159; next appearance in House of Mystery #161)

Supporting Character(s)

• Gramps (last appearance in House of Mystery #158; next appearance in House of Mystery #161)
• Miss Millie (last appearance in House of Mystery #158; next appearance in House of Mystery #161)
• Suzy (next appearance in House of Mystery #166)

Villain(s)

• The Wizard of Light (aka Dr. Drago; no further appearances)
• The Wizard's gang (no further appearances)

Other Character(s)

• Ned (Robby's cousin; no further appearances)

Comments:
Robby Reed becomes Giantboy, King Kandy, and Plastic Man in this story.

This is the first appearance of Plastic Man in a DC comic. Robby refers to Plas as a hero from years ago which indicates that Plastic Man existed on Earth-1 at some point prior to this story.

Synopsis:
While visiting his cousin, Robby Reed sees a dam break. The escaping water threatens a small farming community so Robby uses his H-Dial to become Giantboy. Giantboy quickly builds a rock wall to stop the oncoming water and save the farmers.

Giantboy's attention is then attracted by an explosion from a nearby lab. Giantboy rescues a scientist trapped inside but he falls victim to poison gas. He stumbles into the river where onlookers believe he dies. However, Robby has enough life remaining to use the H-Dial and become his teenage self, who is unharmed by the poison.

The next day at the fair, Robby becomes King Kandy in order to stop the theft of a pearl necklace by a crook calling himself the Wizard of Light. Though the crook gets away, Robby sees him again later. This time Robby is transformed into Plastic Man. As Plas, Robby pursues the Wizard and deduces the crook's identity as Dr. Drago, the scientist he rescued earlier as Giantboy. Robby apprehends Drago, then returns to his cousin's house.