The Coming of the Strangers

CREATURES FROM SOME UNKNOWN SEA, THEY MOVED ON EARTH IN THEIR INVISIBLE HORDES

The exploring party was felt and heard but not seen. Footprints on the sand... furniture knocked over... all these were heralds of their presence.

But these were only the forerunners. The ghostly appearances grew and spread, and then the deaths began. A full-scale invasion was in progress – from an enemy who could be behind you or by your side, but who never showed himself, even as a shadow.