Ralph Hammond Innes was a British novelist who wrote over 30 novels, as well as works for children and travel books.
Excerpt from Wikipedia, available under CC BY-SA 4.0.

North Star
1977
ISBN 9780345251947
The land God gave to Cain
1978
ISBN 9780002214506
Campbell's Kingdom
2016
ISBN 9781504040099
Dead and alive
1958
ISBN 9780006162476
The Killer Mine
1962
ISBN 9780006118633
High Stand
1985
ISBN 9780002229715
Solomons Seal
2013
ISBN 9781448210947
Golden Soak
2016
ISBN 9781504040952
The Lonely Skier
2016
ISBN 9781504040105
The golden soak
1973
ISBN 9780394484662
The Conquistadors
2002
ISBN 9780141391229