The Curse of Doone

From Author Wars - https://authorwars.com/publications/the-curse-of-doone-839561.html

Overview:

Title: The Curse of Doone
Author: Sydney Horler
Year: 1930
Publisher: The Mystery League
Price: $0.50
Pages: 315
Binding: Hardcover
Type: Novel
Title Reference: The Curse of Doone
Notes: Info from Fantlab. Date and price (front flap) from dustjackets.com; cover artist from: http://alphabettenthletter.blogspot.com/2014/12/under-cover-gene-thurston-mystery.html.