Cover image not available
Originally published: Boston, Mass. : Little, Brown ; London : Gollancz, 1950.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Double, double : a new novel of Wrightsville by Ellery Queen. ISBN 0575019131. Published by Gollancz in 1975. Publication and catalogue information, links to buy online and reader comments.