Script:	Gerry Conway (credited)
Pencils:	Dick Dillin (credited)
Inks:	Frank McLaughlin (credited)
Colors:	Jerry Serpe (credited)
Letters:	Ben Oda (credited)

• Genre:superhero
• Job Number:S-3057

• Keywords:Homo Magus; Justice League Satellite; Magic; Royal Archeological Society; The Medulla Gem; The Optic Gem; The Secret City; Turkey

Justice League of America [Superman [Clark Kent; Kal-El]; Batman [Bruce Wayne]; The Flash [Barry Allen]; Wonder Woman [Diana Prince]; Zatanna; Hawkgirl [Shayera Hol]; Black Canary [Dinah Lance]; Elongated Man [Ralph Dibny]; Green Arrow [Oliver Queen]; Red Tornado [John Smith]]; Zatara; Sindella (death); Highlord (villain); Sir Hugo Holcraft (flashback)

Synopsis:

The heroes of the League invade the Hidden City to rescue Zatanna and her parents, but they are outmatched by the forces of the Highlord. Sindella uses her magic to defeat the enemy, but sacrifices her life in the process.

Reprints (3)

• in Gerechtigkeitsliga (Egmont Ehapa, 1977 series) #8 (1979)
• in Justice League of America (K. G. Murray, 1980 ? series) (1980)
• in Justice League of America: The Bronze Age Omnibus (DC, 2017 series) #3 ([September] 2021)

Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. Last issue edited by Schwartz.

Script:	Bob Rozakis
Letters:	typeset

• Job Number:S-3088

Letters of comment from Tony Edwards, Dan Clayton Shoemaker, and Ken Sandler.

Script:	Arthur Gutowitz
Letters:	typeset

Statement of October 1, 1978
Average number of copies sold during preceding 12 months (total paid circulation): 126,809
Actual number sold for issue nearest filing date (total paid circulation): 136,191
Owner: National Periodical Publications, Inc., wholly owned by Warner Communications, Inc., a publicly-held company, both at 75 Rockefeller Plaza, N.Y., N.Y. 10019

As Business Manager, Gutowitz merely verified the circulation numbers; this is not a creator credit.