The Mystery of the Spiteful Letters (1947)
Book ID: 65388
The Mystery of the Spiteful Letters. Being the Fourth Adventures of the Five Find-Outers and Dog. Illustrated by J. Abbey. London: Methuen, 1947. Second Edition. Pp, 166. A lovely clean copy in pictorial dust jacket (not Price-clipped).
Larry, Daisy, Pip, Bets and Buster become involved in a very peculiar situation when a series of unsigned letters are sent to various people in Peterswood.