Synopsis for "The Isle of Lost Monsters"
As Godzilla fends off another attack made by SHIELD's Godzilla squad, Demonicus unleashes his other monsters to attack the beast. Realizing there's a complex below, Dum Dum sends Gabriel Jones to investigate. Gabe is captured by Demonicus and his men. Demonicus explains that he was a scientist that was exposed to radiation during an accident, and was deemed unfit to continue practicing. Clearly ignoring his own madness, he learned of the Lifestone which had fallen in the Aleutian Islands. He then constructed this base and created the monsters which are now fighting Godzilla in order to use as weapons for world domination.

When Demonicus is told that his creatures are being killed by Godzilla, Gabe uses the moment to break loose and stop Demonicus. As Godzilla kills the last of Demonicus' monsters, SHIELD destroys his base, captures him and frees the Eskimo tribe under his rule. As Godzilla leaves the scene, Dum Dum begins to wonder just how intelligent Godzilla really is. 

Notes
This issue is reprinted in Essential Godzilla, Volume 1.
Doctor Demonicus appears next in Shogun Warriors #12.

Trivia
Lepirax is an analog for the Toho monster Mothra.