John Zaremba

A U.S. spaceship returning from Venus carries a horrifying lizard-like creature that has the capability to destroy an entire city.

Two scientists become trapped in a time machine.

Ex-navy Underwater Demolition Team Officer Mike Nelson continues his skin-diving as a postwar profession, combining mastery of the SCUBA and spear with a flair for dangerous investigation.

The U.S. military realizes its most advanced weapons are no match for an invading army of aliens determined to enslave Earth—and time is running out.

A sensitive but confused teenager feels pressure on him from all directions and turns to drugs, which causes problems for him in school and at home and his parents feel like they can no longer cope.