This is the ONLY book released under this pseudonym. Another "John Hill" wrote
the novelization of the horrible film "Heartbeeps", but it was NOT Dean
Koontz. This novel was expanded from the story "Grayworld" which originally
appeared in the short story collection
, edited by Robert Hoskins and published by Lancer in 1973. This is one of the
very rare paperbacks, and if you find one in good condition, be prepared to pay
quite a bit for it.
If you have a copy of this novel, then you have a first edition, as there was
only one printing.