Peter Saxon - The Curse of Rathlaw

Published by Lancer (73-750) in 1968. Peter Saxon was originally a pseudonym of W. Howard Baker but it became a house name when Baker took over the editorial reins of the Sexton Blake line. At least five other authors published as Peter Saxon - Wilfred McNeilly, Martin Thomas, Rex Dolphin, Stephen D. Frances and Ross Richards - this particular novel is by Martin Thomas. Cover art by Jeff Jones.