Cobra tricks the Joes into attacking an underwater base (masterminded by Prof. Appel, Candy's father, a Crimson Guardsman and scientist), which due to its depth, is attacked by high explosives. The explosives cause an underground quake to begin, the
The price of "G.I. Joe, A Real American Hero #40 [Direct]-Very Good (3.5 – 5)" at Hello Comics is USD $3.99.
The publisher of "G.I. Joe, A Real American Hero #40 [Direct]-Very Good (3.5 – 5)" is Marvel Comics.
The genre of "G.I. Joe, A Real American Hero #40 [Direct]-Very Good (3.5 – 5)" is War.
"G.I. Joe, A Real American Hero #40 [Direct]-Very Good (3.5 – 5)" falls under the category of Back Issues.
The artists of "G.I. Joe, A Real American Hero #40 [Direct]-Very Good (3.5 – 5)" are Mike Zeck, and Rod Whigham.
The writers of "G.I. Joe, A Real American Hero #40 [Direct]-Very Good (3.5 – 5)" are Ann Nocenti, and Larry Hama.