A great Sci-Fi novel from the 1950s, by George O. Smith. This is a classic.

Here's a quote from the web:

"Story of disappearance and chase in one man's weird and terrifying race with time and unseen enemies to locate and stop a dread menace that struck slowly and painfully - from outer space!"

I hope you enjoy it.

NOTE: I'm going to have a beer, and then I'll come back and work on the rest of George O. Smith's science fiction. (I wonder which Peruvian beer I should get today?):rofl: