Books by Robert W. Walker

Pure Instinct
1995
ISBN 9780747212539
Killer Instinct
1992
ISBN 9780515117905
From Beyond the Grave: A Collection of 19 Ghostly Tales
2013
ISBN 9780989026918
Extreme instinct
1998
ISBN 9780515121957
Horror 101: The Way Forward
2014
ISBN 9780992227241
Aftershock
1987
ISBN 9780312909062
Razor's Edge
1989
Keys to the Deeper Life
1963
ISBN 9780310333616
Brain Watch
1985
ISBN 9780843921953
Dr. O
1991
ISBN 9780821734742
Cutting edge
1997
ISBN 9780515120127
Unnatural Instinct
2002
ISBN 9780515135299
Psi
2006
ISBN 9781590805084
For the Night is Dark
2013
ISBN 9780992170783
Gone Gorilla
2016
ISBN 9781772232851
Bayou Wulf
2019
ISBN 9781713056638
The Sub-TerraneanS
2019
ISBN 9781651379103
Fatal Instinct
Darkest Instinct
Blind Instinct
Bitter Instinct
Absolute Instinct
Primal Instinct
1994
Hunting Lure
2010