Comic Title: Showcase #25
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Mar/Apr 1960
On Sale Date: January 26, 1960 Newsstand Date January 26, 1960
Source: House Ad, World's Finest Comics #108, Page 15

Copyright Date January 26, 1960
Source: Library of Congress, Periodicals 1960

Frequency: Bi-monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "Captives of the Medieval Sorcerer"
Pages: 25

Feature(s):
Rip Hunter (of Earth-1)

Writer: Jack Miller
Artist: Joe Kubert

Reprinted In:
Showcase Presents:Rip Hunter, Time Master Vol. 1 TPB (2012)

Feature Character(s)

• Rip Hunter (last appearance in Showcase #21; next appearance in Showcase #26)

Supporting Character(s)

• Bonnie Baxter (last appearance in Showcase #21; next appearance in Showcase #26)
• Corky Baxter (last appearance in Showcase #21; next appearance in Showcase #26)

Villain(s)

• Cholorus and his followers (no further appearances)
• Doctor Senn (no further appearances)

Other Character(s)

• Professor Blakeslee (a friend of Rip Hunter; no further appearances)
• King Gamina and the people of Ritannia (no further appearances)

Comments:
Chap. 2: "The Valley of the Monsters"
Chap. 3: "The Sorcerer's Siege"

Jeff Smith is said to be on vacation during this story.

Synopsis:
Rip, Bonnie, and Corky agree to take Dr. Senn back in time 1,000 years on a secret mission. In the kingdom of Ritannia, Dr. Senn leaves the crew with the Time Sphere. When he doesn’t return, Rip leaves to look for him, but is captured by King Gamina and his soldiers.

Rip escapes from the dungeon, but is quickly recaptured by Cholorus, a sorcerer. Rip, Bonnie, and Corky are then forced to make their way across a valley containing monstrous creatures. They succeed in escaping the valley, then discover the real King Gamina bound inside the Time Sphere.

Rip and Gamina return to the king's castle, where Dr. Senn has been impersonating him. Senn wanted to learn the secret of Cholorus's sorcery, but the deception anger the mage. Cholorus and his followers then attack the kingdom, but Rip deduces the source of the sorcerer's power and destroys it. He then returns to the present in the Time Sphere with Dr. Senn a captive.