Comic Title: Challengers of the Unknown #66
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Feb/Mar 1969
On Sale Date: December 3, 1968 Copyright Date December 3, 1968
Source: Library of Congress, Periodicals 1969

Newsstand Date December 3, 1968
Source: Comic Reader, #70

Frequency: Bi-monthly
Cover Price: $0.12
Page Count: 32
Editor: Murray Boltinoff

Title: "Rendezvous with Revenge"
Pages: 23

Feature(s):
Challengers of the Unknown (of Earth-1)

Writer: Mike Friedrich
Artist: Jack Sparling

Feature Character(s)

• Challengers of the Unknown (last appearance in Challengers of the Unknown #65; next appearance in Challengers of the Unknown #67)
• Ace Morgan (last appearance in Challengers of the Unknown #65; next appearance in Challengers of the Unknown #67)
• Red Ryan (last appearance in Challengers of the Unknown #65; next appearance in Challengers of the Unknown #67)
• Rocky Davis (last appearance in Challengers of the Unknown #65; next appearance in Challengers of the Unknown #67)
• Prof. Haley (last appearance in Challengers of the Unknown #65; next appearance in Challengers of the Unknown #67)

Supporting Character(s)

• Tino Manarry (last appearance in Challengers of the Unknown #63; next appearance in Challengers of the Unknown #67)

Villain(s)

• The Legion of the Weird (last appearance in Challengers of the Unknown #63; no further appearances)
• Count Karnak (last appearance in Challengers of the Unknown #63; no further appearances)
• Madoga (last appearance in Challengers of the Unknown #63; no further appearances)
• Hordred (last appearance in Challengers of the Unknown #63; no further appearances)
• Kaftu (dies in this story; last appearance in Challengers of the Unknown #63; no further appearances)
• Mistress Wycker (last appearance in Challengers of the Unknown #63; no further appearances)
• Tukamenon (dies in this story; last appearance in Challengers of the Unknown #63; no further appearances)
• Om (behind-the-scenes; the Legion's master; no further appearances)

Synopsis:
The Challengers track down Tino Manarry who was captured by the Legion of the Weird. The Legion plans a trap for the Challs and send Tukamenon to attack them. The Challs trick the mummy into believing that Prof is dead. Tukamenon did not want to kill anyone, so he turns against his master Kaftu. When Prof is revealed to be alive Tukamenon kills himself for murdering Kaftu. Without two of their members the Legion is forced to flee. The Challs succeed in Tino's rescue, and the spell which allowed him to share sight with Red is broken.