Comic Title: Detective Comics #218
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: April 1955
Approx. On Sale Date: February 24, 1955 Copyright Date February 22, 1955
Source: Library of Congress, Periodicals 1955
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "Batman, Junior and Robin, Senior"
Pages: 12

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

Writer: Bill Finger
Penciller: Sheldon Moldoff
Inker: Stan Kaye

Reprinted In:
Batman #182 (1966)

Feature Character(s)

• Batman (last appearance in Batman #91; next appearance in Detective Comics #219)

Supporting Character(s)

• Robin (last appearance in Batman #91; next appearance in Detective Comics #219)
• Commissioner Gordon (last appearance in Batman #91; next appearance in World's Finest Comics #76)

Villain(s)

• Wilton Winders (alias Professor Ephraim Vair; no further appearances)
• Beetles (no further appearances)

Other Character(s)

• Dr. Richard Marsten, John Conklin, and Victor Verne (an inventor, an auto magnate, and an actor; no further appearances)

Synopsis:
Wilton Winders a criminal ex-scientist steals two newly invented gases from Dr. Richard Marsten. The gases cause people to become older or younger depending on which gas is applied. When Batman and Robin try to capture Winders, they are exposed to the gases. Robin becomes an adult, and Batman becomes a child with no memory of the last 10 years.

Hindered by their new age changes, the Dynamic Duo tracks Winders as he sells the gas to wealthy older men to restore their youth. When Robin and Batman catch up to Winders, the crook tries using the gas on himself as a disguise. The Caped Crusaders are not fooled and are able to catch him. Then using the remaining gas, restore everyone to their rightful ages.