Night of the Big Heat
 The main characters are a former novelist named Richard Callum and his wife Frankie, who own a pub called the White Lion. Richard has hired a secretary to help out on his new book, Patricia Wells, who turns out to have an obsession for Callum. A visiting scientist named Harsen reveals, ultimately, that the reason for the extreme heat is that an alien race of spiders are "beaming in" scouts from their home planet via an improbable "radio wave" ray which generates intense amounts of heat as a side effect. The spiders themselves are carnivorous and eat humans, and give off bodily heat intense enough to burn alive any person who gets too close to them. Together with Harsen, Patricia, and science fiction author Vernon Stone, the Callums try to make it to the island's radio station to call for help so that they can thwart the invasion.