Challengers of the Unknown #18

In "The Menace of Mystery Island," the Challengers of the Unknown find themselves stranded on a remote Caribbean isle after June inherits it, only to uncover an alien creature named Cosmo and a buried secret: a man-made volcano hiding a weapons depot. With the team split and trapped by both natural and human-made dangers, Cosmo’s surprising abilities—eye-beams and force-paw projections—become key as the heroes battle captured allies and a hidden enemy force.

In "The Doomed World of Tomorrow," the Challengers of the Unknown are thrust into a future where Earth faces annihilation by cosmic invaders, and the only hope lies in a powerful volti-ray. As they prepare to sacrifice themselves to activate it, they uncover a shocking betrayal from a man named Lenroy, whose hidden agenda threatens to turn salvation into conquest.