Batman No. 241
May 1971
Story: “The Secret of the Psychic Siren” (8 pages)
Editor: Julius Schwartz
Writer: Mike Friedrich
Artist: Rich Buckler
Feature Character: Robin
GS: Kid Flash (between TEEN TITANS #37 / 39), Lilith (last appearance in TEEN TITANS #38)
Supporting Character: Terri Bergstrom
Villains: A Cthuloid cult and their leader (first appearance for all)
Comment: Story continues in next issue.
Synopsis: Terri Bergstrom and Lilith are reunited and discover they are cousins, with the help of Kid Flash and Robin. But Robin, Lilith, and Terri soon face a Cthulu-worshipping cult which wants to destroy them.

Batman No. 242
June 1971
Story: “Death-Point” (8 pages)
Editor: Julius Schwartz
Writer: Mike Friedrich
Artist: Rich Buckler
Feature Character: Robin (next appears in JUSTICE LEAGUE OF AMERICA #91)
GS: Lilith (next appears in TEEN TITANS #39)
Supporting Character: Terri Bergstrom (last appearance)
Villains: The Cthuloid Cult and their leader (last appearance for all)
Comment: Shortly after this story Robin helps the Justice League and Justice Society fight Solomon Grundy (in which adventure he meets the Robin of Earth-Two) in JUSTICE LEAGUE OF AMERICA #91-92, then helps the Teen Titans fight Chief Taxha in TEEN TITANS #39, teams with the Teen Titans and Batman to fight Sonny Trask in BRAVE AND THE BOLD #102, then helps the Teen Titans fight Black Moray in TEEN TITANS #40.
Synopsis: Robin, Lilith, and Terri defeat the Cthuloid cult, but Terri discovers that close proximity to her cousin causes an energy feedback that turns Lilith evil. Thus, she sadly realizes that she and Lilith must remain forever separate.
