Harry Adam Knight
Harry Adam Knight is a joint pseudonym of Leroy Kettle & John Brosnan. Leroy Richard Arthur "Roy" Kettle OBE (born 1949) is a retired United Kingdom civil servant. Science fiction fans know Kettle as a prolific co-author with John Brosnan, publishing under the names Harry Adam Knight and Simon Ian Childer. Source: Wikipedia
Books
Slimer (A Star Book)
1983
ISBN 9780352313669
The fungus
1985
ISBN 9780575048010
Bedlam
1992
ISBN 9780575053472
Carnosaur
1984
ISBN 9780575056589