Highways In Hiding

What were the oddly sinister symbols along otherwise ordinary roads? What was behind the spreading plague called Mekstrom's Disease? Why were there "blank" spots where telepathy didn't work? Who was the elusive enemy with powers even beyond those ESP had bestowed on mankind?

And, most important of all . . . could Steve find that enemy before they made him vanish too?

And then it came to him that what he really wanted was to possess a body of Mekstrom Flesh, to be a physical superman. . .