The Haunted Earth

The Maseni were
humanoid, but no creature with bulbous forehead, slit mouth and
tentacles where fingers should be would ever be mistaken for a man. The
Maseni had been on Earth for ten years -- years in which the human race
reeled under the shock not only of meeting an alien intelligence, but of
knowing for the first time that Earth did not belong to men alone. For
the Maseni held the secret of contacting the worlds of the supernatural,
and now all of the creatures of legend and mythology had been released
from their ancient bondage. Not all of them were happy about the new
freedom however -- even a vampire is apt to resent the interference when
he's stopped in mid-bite by the precise wording of a decision handed
down by the Supreme Court of the United Nations. Dean Koontz takes a
wild and wacky look at the wonderful future of Earth when men and demons
walk hand in hand

Ficção científica