I'm not a Sexton Blake fan and up to now am unfamiliar with the pseudonym PETER SAXON.
https://en.wikipedia.org/wiki/Peter_Saxon
In this case the author is likely W. Howard Baker.
[The pseudonym "Peter Saxon" was originally used by Irish pulp fiction writer and journalist W. Howard Baker at Amalgamated Press, mostly for novels in the Sexton Blake series.[ One of these Sexton Blake novels, Crime Is My Business, was made into the 1958 film, Murder at Site 3, by Hammer Film Productions.]
I'm already 3 pages into this one, so he's good.
Cheers!
Link to the book:
Sexton Blake Library S4 360 Flight into Fear