The Plague of Sound (Library Edition)

Second in a series of novels based on the original comic strip sequences. Thrill to:A spaceship captured in a magnetic field and pulled beneath the earth into an underground city. Flash Gordon jumps to safety only to be caught in the web of a giant man-eating spider, then saved by a titian-haired beauty. Pan, a lunatic musician, seeks to rule a planet by the shattering effects of ultra-high frequency sound. Only Earth's greatest hero stands between him and success. Great Stuff!