Adventure Comics (vol. 1) #317 (Feb. 1964):
“The Menace of Dream Girl!”
by Edmond Hamilton, John Forte

Adventure Comics (vol. 1) #317

Title: “The Menace of Dream Girl!”

Feature: Tales of the Legion of Super-Heroes

Medium: comic

Cover date: Feb. 1964

Publisher: DC
Written by: Edmond Hamilton
Art by: John Forte

4 characters in this story:

(Click links for info about character
and his/her religious practice, affiliation, etc.)
Pub. #
Dream Girl Dream Girl (Nura Nal) hero
  Legion of Substitute Heroes; The Legion of Super-Heroes...  DC 243
The Legion of Super-Heroes The Legion of Super-Heroes hero group
  [1st app: Adventure Comics (vol. 1) #247 (Apr. 1958)] DC 1,257
Rann Antar Rann Antar supporting character
  [Legion reject; had formula to turn feathers into lead] DC 1
Time Trapper Time Trapper
  [1st app: Adventure Comics (vol. 1) #318 (Mar. 1964)] DC 36

The Legion of Super-Heroes story in this issue is divided into two "parts," but they constitute a single narrative story and they were created by the same creative team. The two parts are:
Part I: The Menace of Dream Girl!
Part II: The Doom of the Legion!