Data courtesy of the Grand Comics Database under Creative Commons license.

Issue Details

Issue	#206
Published	October 1971
Cover Price	0.35
Pages	68
Editing	E. Nelson Bridwell
Notes	Also numbered as G-88.

Cover Details

Characters	Superman; Batman; Robin
Genre	superhero
Pencils	Dick Giordano
Inks	Dick Giordano
Notes	Also numbered as G-88.

15 page Superman and Batman story "The Secret of the Captive Cavemen"

Characters	Professor Carter Nichols; General Grote; Superman [Clark Kent]; Batman [Bruce Wayne]; Robin [Dick Grayson]
Synopsis	Batman, Robin and Superman chase a mysterious alien into the prehistoric past.
Genre	superhero
Script	Bill Finger
Pencils	Jim Mooney
Inks	Jim Mooney
Reprinted	from World's Finest Comics (DC, 1941 series) #138 (December 1963)

13 page Superman and Batman story "The Creature That Was Exchanged for Superman"

Characters	Superman [Clark Kent]; Batman [Bruce Wayne]; Robin [Dick Grayson]; Vathgar (Alien from Xeron); Skran (Alien beast)
Synopsis	A mysterious ray makes Superman disappear and he is replaced with an invulnerable alien beast.
Genre	superhero
Script	Jerry Coleman
Pencils	Dick Sprang
Inks	Sheldon Moldoff
Notes	Bob Klein/Gene Reed say Charles Paris inks
Reprinted	from World's Finest Comics (DC, 1941 series) #118 (June 1961)

13 page Superman and Batman story "Riddle of the Four Planets!"

Characters	The Zelaphod; Indal; Thrikor; Superman [Clark Kent]; Batman [Bruce Wayne]; Robin [Dick Grayson]
Synopsis	Superman, Batman and Robin must help an alien race stop the Zelaphod, an alien beast that is loose on Earth.
Genre	superhero
Script	Jerry Coleman
Pencils	Jim Mooney
Inks	Jim Mooney
Reprinted	from World's Finest Comics (DC, 1941 series) #130 (December 1962)

13 page Superman and Batman story "The Mirror Batman"

Characters	Superman; Batman; Robin
Genre	superhero
Script	Jerry Coleman
Pencils	Jim Mooney
Inks	Jim Mooney
Reprinted	from World's Finest Comics #121 (November 1961)